Pigtailed Distributed Feedback (DFB) Single-Frequency Lasers, Butterfly Package


  • Center Wavelengths Available from 1555 nm to 1654 nm
  • Narrow Linewidth, Tunable, Single-Frequency Operation
  • Integrated Dual-Stage Optical Isolator and TEC Element
  • Versions with SM or PM Fiber Pigtail

DFB1654

1654 nm, 80 mW Fiber-Coupled Laser, SM Pigtail

DFB1550PN

1555 nm, 150 mW Fiber-Coupled Laser, PM Pigtail

Related Items


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Webpage Features
info icon Clicking this icon opens a window that contains specifications and mechanical drawings.
info icon Clicking this icon allows you to download our standard support documentation.

Choose Item

Clicking the words "Choose Item" opens a drop-down list containing all of the in-stock lasers around the desired center wavelength. The red icon next to the serial number then allows you to download L-I-V and spectral measurements for that serial-numbered device.

Features

  • Center Wavelengths from 1555 nm to 1654 nm
  • Output Power ≥70 mW
  • Mode-Hop-Free Output Over Specified Current Range
  • Single Mode or Polarization-Maintaining Fiber Pigtail
  • Integrated Dual-Stage Optical Isolator Protects Laser from Back Reflections
  • Typical Laser Linewidths of 50 kHz or 150 kHz
  • 2.0 mm Narrow-Key FC/APC Connector

Applications

  • Near Infrared Spectroscopy (NIRS)
  • LIDAR
  • Telecommunications
  • General Sensing
  • Methane Sensing

Thorlabs' Distributed Feedback (DFB) Lasers in butterfly packaging are narrow-linewidth, single-frequency laser diodes that use a corrugated waveguide throughout the active region of the laser cavity (see SFL Guide tab). A DFB laser's periodic structure acts as a distributed reflector, providing optical feedback and wavelength selection for the diode. This allows these butterfly-packaged DFB lasers to achieve narrow linewidths with excellent side mode suppression ratios. These DFB lasers achieve output powers ≥70 mW with mode-hop-free tuning. They can be both current-tuned, for a fast response over a wide wavelength range, and temperature-tuned. Typical performance graphs and specifications can be viewed by clicking on the blue icon (info icon) in the table below.

While the center wavelength is listed for the laser diodes below, this is only a typical number. The center wavelength of a particular unit varies from production run to production run, so the diode you receive may not operate at the typical center wavelength. By clicking "Choose Item" below, a list will appear that contains the center wavelength, output power, and operating current of each in-stock unit. Clicking on the red Docs Icon (info icon) next to the serial number provides access to a PDF with serial-number-specific L-I-V and spectral characteristics.

Some of Thorlabs' butterfly DFB lasers are uniquely suited for gas sensing and analysis. The DFBs with center wavelengths from 1642 nm to 1654 nm emit at wavelengths ideal for sensing methane gas. These DFB lasers are guaranteed to reach their specified wavelengths within their tuning range and are single wavelength, allowing them to be tuned to the desired methane peak. More information can be found in the Spectroscopy tab above, or by clicking on the blue info icons () next to the relevant Item #s below.

Package Details and Mounting Options
These DFB lasers are housed in a compact 14-pin, type-1 butterfly package, enabling compatibility with any standard 14-pin laser diode mount (such as Item # LM14S2 or LM14TS). The butterfly package includes an integrated thermoelectric cooler (TEC), thermistor, monitor photodiode, and a single mode or polarization-maintaining output fiber with an FC/APC connector. Since DFB lasers are extremely sensitive to back reflections, the use of the angled FC/APC connector is needed. For additional protection from back reflections, each of these butterfly package DFB lasers includes an internal dual-stage optical isolator, providing 50 dB of typical isolation.

These DFB lasers are compatible with Thorlabs' line of laser diode drivers and temperature controllers. When operating these lasers in environments with more than 5 °C variation in temperature, we recommend using the LM14TS mount, which provides active control of the laser diode's case temperature to stabilize the laser's wavelength and output power.

Handling and Cleaning
Laser diodes are sensitive to electrostatic shock. Please take the proper precautions when handling the device, such as using an ESD wrist strap.

We recommend cleaning the fiber connector before each use if there is any chance that dust or other contaminants may have deposited on the surface. The laser intensity at the center of the fiber tip can be very high and may burn the tip of the fiber if contaminants are present. While the connectors on these pigtailed laser diodes are cleaned and capped before shipping, we cannot guarantee that they will remain free of contamination after it is removed from the package. We also recommend that the laser is turned off when connecting or disconnecting the device from other fibers.

Thorlabs has several options for 1550 nm single-frequency lasers: butterfly packaged external cavityextended butterfly packagedturnkey low-noise & ultra-low-noise (ULN) hybrid, pigtailed DFB, and TO Can DFB single-frequency lasers. The extended butterfly-packaged ULN lasers offer the narrowest linewidth (<250 Hz) at the expense of tuning range. The turnkey ULN offer similar specs in a complete system. Our external cavity single-frequency lasers offer the next lowest linewidth (50 kHz typ.) at 1550 nm, but have a lower output power and regions of multimode operation. The pigtailed and TO Can DFB single-frequency lasers offer additional packaging and continuous tuning ranges, but at much lower output powers. Thorlabs also offers turnkey benchtop and rack-mounted tunable lasers covering the C-Band and other common telecommunication wavelength ranges. See the SFL Guide tab for more information.

Pigtailed DFB Butterfly Laser Diode Pin Diagram

Pin Identification
Pin Assignment Pin Assignment
1 TECa + 14 TEC -
2 Thermistor 13 Case
3 PDb Anode 12 NC
4 PD Cathode 11 LDd Cathode
5 Thermistor 10 LD Anode
6 NCc 9 NC
7 NC 8 NC
  • Thermoelectric Cooler (TEC)
  • Photodiode (PD)
  • Not Connected (NC)
  • Laser Diode (LD)

ECL, DFB, VHG-Stabilized, and DBR Single-Frequency Lasers

ECL Laser Diagram
Click to Enlarge

Figure 1: ECL Lasers have a Grating Outside of the Gain Chip

A wide variety of applications require tunable single-frequency operation of a laser system. In the world of diode lasers, there are currently four main configurations to obtain a single-frequency output: external cavity laser (ECL), distributed feedback (DFB), volume holographic grating (VHG), and distributed Bragg reflector (DBR). All four are capable of single-frequency output through the utilization of grating feedback. However, each type of laser uses a different grating feedback configuration, which influences performance characteristics such as output power, tuning range, and side mode suppression ratio (SMSR). We discuss below some of the main differences between these four types of single-frequency diode lasers.

External Cavity Laser
The External Cavity Laser (ECL) is a versatile configuration that is compatible with most standard free space diode lasers. This means that the ECL can be used at a variety of wavelengths, dependent upon the internal laser diode gain element. A lens collimates the output of the diode, which is then incident upon a grating (see Figure 1). The grating provides optical feedback and is used to select the stabilized output wavelength. With proper optical design, the external cavity allows only a single longitudinal mode to lase, providing single-frequency laser output with high side mode suppression ratio (SMSR > 45 dB).

One of the main advantages of the ECL is that the relatively long cavity provides extremely narrow linewidths (several hundred kHz). Additionally, since it can incorporate a variety of laser diodes, it remains one of the few configurations that can provide narrow linewidth emission at blue or red wavelengths. The ECL can have a large tuning range (>100 nm) but is often prone to mode hops, which are very dependent on the ECL's mechanical design as well as the quality of the antireflection (AR) coating on the laser diode.

DBR Laser Diagram
Click to Enlarge

Figure 2: DFB Lasers Have a Bragg Reflector Along the Length of the Active Gain Medium

Distributed Feedback Laser
The Distributed Feedback (DFB) Laser (available in NIR with TO can, pigtailed TO can, and butterfly packaging, and MIR with two-tab C-mount, D-mount, and HHL packaging) incorporates the grating within the laser diode structure itself (see Figure 2). This corrugated periodic structure coupled closely to the active region acts as a Bragg reflector, selecting a single longitudinal mode as the lasing mode. If the active region has enough gain at frequencies near the Bragg frequency, an end reflector is unnecessary, relying instead upon the Bragg reflector for all optical feedback and mode selection. Due to this “built-in” selection, a DFB can achieve single-frequency operation over broad temperature and current ranges. To aid in mode selection and improve manufacturing yield, DFB lasers often utilize a phase shift section within the diode structure as well.

The lasing wavelength for a DFB is approximately equal to the Bragg wavelength:

DBR Equation

where λ is the wavelength, neff is the effective refractive index, and Λ is the grating period. By changing the effective index, the lasing wavelength can be tuned. This is accomplished through temperature and current tuning of the DFB.

The DFB has a relatively narrow tuning range: about 2 nm at 850 nm, about 4 nm at 1550 nm, or at least 1 cm-1 in the mid-IR (4.00 - 11.00 µm). However, over this tuning range, the DFB can achieve single-frequency operation, which means that this is a continuous tuning range without mode hops. Because of this feature, DFBs have become a popular and majority choice for real-world applications such as telecom and sensors. Since the cavity length of a DFB is rather short, the linewidths are typically from several hundred kHz to 10 MHz. Additionally, the close coupling between the grating structure and the active region results in lower maximum output power compared to ECL and DBR lasers.

DBR Laser Diagram
Click to Enlarge

Figure 3: VHG Lasers have a Volume Holographic Grating Outside of the Active Gain Medium

Volume-Holographic-Grating-Stabilized Laser
A Volume-Holographic-Grating-(VHG)-Stabilized Laser also uses a Bragg reflector, but in this case a transmission grating is placed in front of the laser diode output (see Figure 3). Since the grating is not part of the laser diode structure, it can be thermally decoupled from the laser diode, improving the wavelength stability of the device. The grating typically consists of a piece of photorefractive material (typically glass) which has a periodic variation in the index of refraction. Only the wavelength of light that satisfies the Bragg condition for the grating is reflected back into the laser cavity, which results in a laser with extremely wavelength-stable emission. A VHG-Stabilized laser can produce output with a similar linewidth to a DFB laser at higher powers that is wavelength-locked over a wide range of currents and temperatures.

DBR Laser Diagram
Click to Enlarge

Figure 4: DBR Lasers have a Bragg Reflector Outside of the Active Gain Medium

Distributed Bragg Reflector Laser
Similar to DFBs, Distributed Bragg Reflector (DBR) lasers incorporate an internal grating structure. However, whereas DFB lasers incorporate the grating structure continuously along the active region (gain region), DBR lasers place the grating structure(s) outside this region (see Figure 4). In general a DBR can incorporate various regions not typically found in a DFB that yield greater control and tuning range. For instance, a multiple-electrode DBR laser can include a phase-controlled region that allows the user to independently tune the phase apart from the grating period and laser diode current. When utilized together, the DBR can provide single-frequency operation over a broad tuning range. For example, high end sample-grating DBR lasers can have a tuning range as large as 30 - 40 nm. Unlike the DFB, the output is not mode hop free; hence, careful control of all inputs and temperature must be maintained.

In contrast to the complicated control structure for the multiple-electrode DBR, a simplified version of the DBR is engineered with just one electrode. This single-electrode DBR eliminates the complications of grating and phase control at the cost of tuning range. For this architecture type, the tuning range is similar to a DFB laser but will mode hop as a function of the applied current and temperature. Despite the disadvantage of mode hops, the single-electrode DBR does provide some advantages over its DFB cousin, namely higher output power because the grating is not continuous along the length of the device. Both DBR and DFB lasers have similar laser linewidths. Currently, Thorlabs offers only single-electrode DBR lasers.

Ultra-Low-Noise Hybrid Laser
Thorlabs Ultra-Low-Noise (ULN) Hybrid Lasers each consist of a single angled facet (SAF) gain chip coupled to an exceptionally long fiber Bragg grating (FBG). They are designed to create a laser cavity, similar to an ECL, through the length of fiber. This cavity provides the ULN hybrid laser with a very narrow line width on the order of 100 Hz and low relative intensity noise of -165 dBc/Hz (typical). The FBG reflects a portion of the light emitted from the gain medium while remaining thermally isolated from it. The grating period can be changed by introducing thermal stress to the fiber, allowing users to temperature tune the laser output while being able to independently stabilize the gain medium's temperature. Because the laser's configuration provides excellent low-noise performance, it is likely the laser will not be the limiting factor at low-noise levels. It is critical to monitor the laser's environment to limit external noise contributions like acoustic and seismic vibrations, as well as driving the laser with a low-noise current source.

Hybrid Laser Diagram
Click to Enlarge

Figure 5: Thorlabs Hybrid Lasers have a Fiber Bragg Grating Coupled to the Active Gain Medium

Conclusion
ECL, DFB, VHG, and DBR laser diodes provide single-frequency operation over their designed tuning range. The ECL can be designed for a larger selection of wavelengths than either the DFB or DBR. While prone to mode hops, it also provides the narrowest linewidth (several hundred kHz) of the three choices. In appropriately designed instruments, ECLs can also provide extremely broad tuning ranges (>100 nm).

The DFB laser is the most stable single-frequency, tunable laser of the four. It can provide mode-hop-free performance over its entire tuning range (<5 nm), making it one of the most popular forms of single-frequency laser for much of industry. It often has low output power due to inherent properties of the continuous grating feedback structure, but higher powers can be achieved with different packaging styles.

The VHG laser provides the most stable wavelength performance over a range of temperatures and currents and can provide higher powers than are typical in DFB lasers. This stability makes it excellent for use in OEM applications.

The single-electrode DBR laser provides similar linewidth and tuning range as the DFB (<5 nm). However, the single-electrode DBR will have periodic mode hops in its tuning curve.

Hybrid lasers can be used to achieve extremely low-noise signals. In order to take advantage of this characteristic, the laser must be isolated from unwanted noise sources, such as acoustic and seismic vibrations and drive current noise.

Selected Butterfly Distributed Feedback Lasersa
Item # Nominal Center Frequency Targeted Gas
DFB1642(P) 6090 cm-1 (1642 nm) CH4 (Methane)
DFB1646(P) 6075 cm-1 (1646 nm)
DFB1650(P) 6061 cm-1 (1650 nm)
DFB1654(P) 6046 cm-1 (1654 nm)
  • This table is intended as a reference. Each DFB is a unique device with its own spectrum, and does not necessarily emit at the exact absorption line required for a given experiment. To verify that the DFB you receive will meet your needs, please download its data sheet. Click "Choose Item" below, then click on the Docs icon (Docs Icon) next to the serial number of the laser.

Gas-Phase Spectroscopy Using Distributed Feedback Lasers

Distributed Feedback (DFB) Lasers offer many attractive features for spectroscopy. They emit at a single wavelength within the near-infrared (NIR), where many gaseous species characteristically absorb. Moreover, their emission wavelength is easily tuned by changing the drive current and operating temperature of the laser, making them ideal for isolating narrow gas absorption lines. Finally, these lasers offer relatively high output power (≥70 mW), helping improve measurement sensitivity.

The tuning range of individual DFBs depends greatly on the actual laser device. Each DFB is a unique device with its own threshold current, temperature tuning, and spectrum. The driving current and operating temperature of DFBs can be adjusted to change the output signal to the desired wavelength and power.

An example example absorbance spectrum of methane (CH4) is shown below on the left. The tuning data of the DFB1650(P) diode is shown below on the right, superimposed on the methane absorbance lines. Click on the blue icons (info icon) below for more information on how the emission of each laser in the table above overlaps with the absorbance profile of the targeted gas.


Click to Enlarge

This graph displays the methane absorbance band in the NIR. See the graph to the right for tuning data from a sample DFB1650(P) diode.

Click to Enlarge

Tuning data for a sample DFB1650(P) distributed feedback laser superimposed on the methane absorbance lines is given above. Click on the blue icons (info icon) below to view this data for each laser listed in the table above. See the graph to the left for the absorbance peaks of methane (CH4) that can be detected using this laser.

Video Insight: Setting Up a Pigtailed Butterfly Laser Diode

A laser diode packaged in a butterfly housing can be precisely controlled, in a compact package, when the laser is installed in a mount that includes thermoelectric cooler (TEC) and current drivers. The mount can make it easier, and safer, to operate the laser, but the procedure for installing the laser in the mount and configuring the settings requires some care. This video provides a step-by-step guide, which begins with an introduction to the different components and concludes with the laser operating under TEC control and with the recommended maximum current limit enabled.

 

When operated within their specifications, laser diodes have extremely long lifetimes. Most failures occur from mishandling or operating the lasers beyond their maximum ratings. Laser diodes are among the most static-sensitive devices currently made and proper ESD protection should be worn whenever handling a laser diode. Due to their extreme electrostatic sensitivity, laser diodes cannot be returned after their sealed package has been opened. Laser diodes in their original sealed package can be returned for a full refund or credit.

Handling and Storage Precautions

Because of their extreme susceptibility to damage from electrostatic discharge (ESD), care should be taken whenever handling and operating laser diodes.

Wrist Straps
Use grounded anti-static wrist straps whenever handling diodes.

Anti-Static Mats
Always work on grounded anti-static mats.

Laser Diode Storage
When not in use, short the leads of the laser together to protect against ESD damage.

Operating and Safety Precautions

Use an Appropriate Driver
Laser diodes require precise control of operating current and voltage to avoid overdriving the laser. In addition, the laser driver should provide protection against power supply transients. Select a laser driver appropriate for your application. Do not use a voltage supply with a current-limiting resistor since it does not provide sufficient regulation to protect the laser diode.

Power Meters
When setting up and calibrating a laser diode with its driver, use a NIST-traceable power meter to precisely measure the laser output. It is usually safest to measure the laser diode output directly before placing the laser in an optical system. If this is not possible, be sure to take all optical losses (transmissive, aperture stopping, etc.) into consideration when determining the total output of the laser.

Reflections
Flat surfaces in the optical system in front of a laser diode can cause some of the laser energy to reflect back onto the laser’s monitor photodiode, giving an erroneously high photodiode current. If optical components are moved within the system and energy is no longer reflected onto the monitor photodiode, a constant-power feedback loop will sense the drop in photodiode current and try to compensate by increasing the laser drive current and possibly overdriving the laser. Back reflections can also cause other malfunctions or damage to laser diodes. To avoid this, be sure that all surfaces are angled 5-10°, and when necessary, use optical isolators to attenuate direct feedback into the laser.

Heat Sinks
Laser diode lifetime is inversely proportional to operating temperature. Always mount the laser diode in a suitable heat sink to remove excess heat from the laser package.

Voltage and Current Overdrive
Be careful not to exceed the maximum voltage and drive current listed on the specification sheet with each laser diode, even momentarily. Also, reverse voltages as little as 3 V can damage a laser diode.

ESD-Sensitive Device
Laser diodes are susceptible to ESD damage even during operation. This is particularly aggravated by using long interface cables between the laser diode and its driver due to the inductance that the cable presents. Avoid exposing the laser diode or its mounting apparatus to ESD at all times.

ON/OFF and Power-Supply-Coupled Transients
Due to their fast response times, laser diodes can be easily damaged by transients less than 1 µs. High-current devices such as soldering irons, vacuum pumps, and fluorescent lamps can cause large momentary transients, and thus surge-protected outlets should always be used when working with laser diodes.

If you have any questions regarding laser diodes, please contact Thorlabs Technical Support for assistance.

Laser Safety and Classification

Safe practices and proper usage of safety equipment should be taken into consideration when operating lasers. The eye is susceptible to injury, even from very low levels of laser light. Thorlabs offers a range of laser safety accessories that can be used to reduce the risk of accidents or injuries. Laser emission in the visible and near infrared spectral ranges has the greatest potential for retinal injury, as the cornea and lens are transparent to those wavelengths, and the lens can focus the laser energy onto the retina. 

Laser Glasses Laser Curtains Blackout Materials
Enclosure Systems Laser Viewing Cards Alignment Tools
Shutter and Controllers Laser Safety Signs

Safe Practices and Light Safety Accessories

  • Laser safety eyewear must be worn whenever working with Class 3 or 4 lasers.
  • Regardless of laser class, Thorlabs recommends the use of laser safety eyewear whenever working with laser beams with non-negligible powers, since metallic tools such as screwdrivers can accidentally redirect a beam.
  • Laser goggles designed for specific wavelengths should be clearly available near laser setups to protect the wearer from unintentional laser reflections.
  • Goggles are marked with the wavelength range over which protection is afforded and the minimum optical density within that range.
  • Laser Safety Curtains and Laser Safety Fabric shield other parts of the lab from high energy lasers.
  • Blackout Materials can prevent direct or reflected light from leaving the experimental setup area.
  • Thorlabs' Enclosure Systems can be used to contain optical setups to isolate or minimize laser hazards.
  • A fiber-pigtailed laser should always be turned off before connecting it to or disconnecting it from another fiber, especially when the laser is at power levels above 10 mW.
  • All beams should be terminated at the edge of the table, and laboratory doors should be closed whenever a laser is in use.
  • Do not place laser beams at eye level.
  • Carry out experiments on an optical table such that all laser beams travel horizontally.
  • Remove unnecessary reflective items such as reflective jewelry (e.g., rings, watches, etc.) while working near the beam path.
  • Be aware that lenses and other optical devices may reflect a portion of the incident beam from the front or rear surface.
  • Operate a laser at the minimum power necessary for any operation.
  • If possible, reduce the output power of a laser during alignment procedures.
  • Use beam shutters and filters to reduce the beam power.
  • Post appropriate warning signs or labels near laser setups or rooms.
  • Use a laser sign with a lightbox if operating Class 3R or 4 lasers (i.e., lasers requiring the use of a safety interlock).
  • Do not use Laser Viewing Cards in place of a proper Beam Trap.

 

Laser Classification

Lasers are categorized into different classes according to their ability to cause eye and other damage. The International Electrotechnical Commission (IEC) is a global organization that prepares and publishes international standards for all electrical, electronic, and related technologies. The IEC document 60825-1 outlines the safety of laser products. A description of each class of laser is given below:

Class Description Warning Label
1 This class of laser is safe under all conditions of normal use, including use with optical instruments for intrabeam viewing. Lasers in this class do not emit radiation at levels that may cause injury during normal operation, and therefore the maximum permissible exposure (MPE) cannot be exceeded. Class 1 lasers can also include enclosed, high-power lasers where exposure to the radiation is not possible without opening or shutting down the laser.  Class 1
1M Class 1M lasers are safe except when used in conjunction with optical components such as telescopes and microscopes. Lasers belonging to this class emit large-diameter or divergent beams, and the MPE cannot normally be exceeded unless focusing or imaging optics are used to narrow the beam. However, if the beam is refocused, the hazard may be increased and the class may be changed accordingly.  Class 1M
2 Class 2 lasers, which are limited to 1 mW of visible continuous-wave radiation, are safe because the blink reflex will limit the exposure in the eye to 0.25 seconds. This category only applies to visible radiation (400 - 700 nm).  Class 2
2M Because of the blink reflex, this class of laser is classified as safe as long as the beam is not viewed through optical instruments. This laser class also applies to larger-diameter or diverging laser beams.  Class 2M
3R Class 3R lasers produce visible and invisible light that is hazardous under direct and specular-reflection viewing conditions. Eye injuries may occur if you directly view the beam, especially when using optical instruments. Lasers in this class are considered safe as long as they are handled with restricted beam viewing. The MPE can be exceeded with this class of laser; however, this presents a low risk level to injury. Visible, continuous-wave lasers in this class are limited to 5 mW of output power.  Class 3R
3B Class 3B lasers are hazardous to the eye if exposed directly. Diffuse reflections are usually not harmful, but may be when using higher-power Class 3B lasers. Safe handling of devices in this class includes wearing protective eyewear where direct viewing of the laser beam may occur. Lasers of this class must be equipped with a key switch and a safety interlock; moreover, laser safety signs should be used, such that the laser cannot be used without the safety light turning on. Laser products with power output near the upper range of Class 3B may also cause skin burns.  Class 3B
4 This class of laser may cause damage to the skin, and also to the eye, even from the viewing of diffuse reflections. These hazards may also apply to indirect or non-specular reflections of the beam, even from apparently matte surfaces. Great care must be taken when handling these lasers. They also represent a fire risk, because they may ignite combustible material. Class 4 lasers must be equipped with a key switch and a safety interlock.  Class 4
All class 2 lasers (and higher) must display, in addition to the corresponding sign above, this triangular warning sign.  Warning Symbol

Posted Comments:
Flavia Timpu  (posted 2023-06-27 19:15:55.5)
Hello! Would it be possible to indicate which controller is suitable for this laser diode? Thanks a lot!
jdelia  (posted 2023-07-13 10:22:57.0)
Thank you for contacting Thorlabs. Any of our laser drivers would be suitable as long as they could provide the needed current, along with a compatible mount like LM14S2. Our recommended option would be our CLD1015 mount/driver with the noise reduction filter turned on.
user  (posted 2023-02-24 09:05:25.21)
It would be useful if you could provide information on the speed at which DFBs (for example, DFB1550P) can be current tuned.
ksosnowski  (posted 2023-03-14 12:22:22.0)
Thanks for reaching out to Thorlabs. Theoretically the DFB should have much better tuning range capability than other SFL and we expect 15 GHz tuning range should be no problem. These DFB are not limited by single frequency zones and the current can be modulated through a much wider range also, from 350mA up to 1A. We expect no issues running at 100KHz sweep rate and should be fine for up to several 10s of MHz. This should be done with a driver with suitable bandwidth to support the modulation frequency.

The rows shaded green below denote single-frequency lasers.

Item #WavelengthOutput PowerOperating
Current
Operating
Voltage
Beam DivergenceLaser ModePackage
ParallelPerpendicular
L375P70MLD375 nm70 mW110 mA5.4 V22.5°Single Transverse ModeØ5.6 mm
L404P400M404 nm400 mW370 mA4.9 V13° (1/e2)42° (1/e2)MultimodeØ5.6 mm
LP405-SF10405 nm10 mW50 mA5.0 V--Single Transverse ModeØ5.6 mm, SM Pigtail
L405P20405 nm20 mW38 mA4.8 V8.5°19°Single Transverse ModeØ5.6 mm
LP405C1405 nm30 mW75 mA4.3 V1.4 mrad1.4 mradSingle Transverse ModeØ3.8 mm, SM Pigtail with Collimator
L405G2405 nm35 mW50 mA4.9 V10°21°Single Transverse ModeØ3.8 mm
DL5146-101S405 nm40 mW70 mA5.2 V19°Single Transverse ModeØ5.6 mm
L405A1405 nm175 mW (Min)150 mA5.0 V20°Single Transverse ModeØ5.6 mm
LP405-MF300405 nm300 mW350 mA4.5 V--MultimodeØ5.6 mm, MM Pigtail
L405G1405 nm1000 mW900 mA5.0 V13°45°MultimodeØ9 mm
LP450-SF25450 nm25 mW75 mA5.0 V--Single Transverse ModeØ5.6 mm, SM Pigtail
L450G3450 nm100 mW (Min)80 mA5.2 V8.4°21.5°Single Transverse ModeØ3.8 mm
L450G2450 nm100 mW (Min)80 mA5.0 V8.4°21.5°Single Transverse ModeØ5.6 mm
L450P1600MM450 nm1600 mW1200 mA4.8 V19 - 27°MultimodeØ5.6 mm
L473P100473 nm100 mW120 mA5.7 V1024Single Transverse ModeØ5.6 mm
LP488-SF20488 nm20 mW70 mA6.0 V--Single Transverse ModeØ5.6 mm, SM Pigtail
LP488-SF20G488 nm20 mW80 mA5.5 V--Single Transverse ModeØ5.6 mm, SM Pigtail
L488P60488 nm60 mW75 mA6.8 V23°Single Transverse ModeØ5.6 mm
LP515-SF3515 nm3 mW50 mA5.3 V--Single Transverse ModeØ5.6 mm, SM Pigtail
L515A1515 nm10 mW50 mA5.4 V6.5°21°Single Transverse ModeØ5.6 mm
LP520-SF15A520 nm15 mW100 mA7.0 V--Single Transverse ModeØ5.6 mm, SM Pigtail
LP520-SF15520 nm15 mW140 mA6.5 V--Single Transverse ModeØ9 mm, SM Pigtail
L520A1520 nm30 mW (Min)80 mA5.5 V22°Single Transverse ModeØ5.6 mm
PL520520 nm50 mW250 mA7.0 V22°Single Transverse ModeØ3.8 mm
L520P50520 nm45 mW150 mA7.0 V22°Single Transverse ModeØ5.6 mm
L520A2520 nm110 mW (Min)225 mA5.9 V22°Single Transverse ModeØ5.6 mm
DJ532-10532 nm10 mW220 mA1.9 V0.69°0.69°Single Transverse ModeØ9.5 mm (non-standard)
DJ532-40532 nm40 mW330 mA1.9 V0.69°0.69°Single Transverse ModeØ9.5 mm (non-standard)
LP633-SF50633 nm50 mW170 mA2.6 V--Single Transverse ModeØ5.6 mm, SM Pigtail
HL63163DG633 nm100 mW170 mA2.6 V8.5°18°Single Transverse ModeØ5.6 mm
LPS-635-FC635 nm2.5 mW70 mA2.2 V--Single Transverse ModeØ9 mm, SM Pigtail
LPS-PM635-FC635 nm2.5 mW60 mA2.2 V--Single Transverse ModeØ9.0 mm, PM Pigtail
L635P5635 nm5 mW30 mA<2.7 V32°Single Transverse ModeØ5.6 mm
HL6312G635 nm5 mW50 mA<2.7 V31°Single Transverse ModeØ9 mm
LPM-635-SMA635 nm8 mW50 mA2.2 V--MultimodeØ9 mm, MM Pigtail
LP635-SF8635 nm8 mW60 mA2.3 V--Single Transverse ModeØ5.6 mm, SM Pigtail
HL6320G635 nm10 mW60 mA2.2 V31°Single Transverse ModeØ9 mm
HL6322G635 nm15 mW75 mA2.4 V30°Single Transverse ModeØ9 mm
L637P5637 nm5 mW20 mA<2.4 V34°Single Transverse ModeØ5.6 mm
LP637-SF50637 nm50 mW140 mA2.6 V--Single Transverse ModeØ5.6 mm, SM Pigtail
LP637-SF70637 nm70 mW220 mA2.7 V--Single Transverse ModeØ5.6 mm, SM Pigtail
HL63142DG637 nm100 mW140 mA2.7 V18°Single Transverse ModeØ5.6 mm
HL63133DG637 nm170 mW250 mA2.8 V17°Single Transverse ModeØ5.6 mm
HL6388MG637 nm250 mW340 mA2.3 V10°40°MultimodeØ5.6 mm
L637G1637 nm1200 mW1100 mA2.5 V10°32°MultimodeØ9 mm (non-standard)
L638P040638 nm40 mW92 mA2.4 V10°21°Single Transverse ModeØ5.6 mm
L638P150638 nm150 mW230 mA2.7 V918Single Transverse ModeØ3.8 mm
L638P200638 nm200 mW280 mA2.9 V814Single Transverse ModeØ5.6 mm
L638P700M638 nm700 mW820 mA2.2 V35°MultimodeØ5.6 mm
HL6358MG639 nm10 mW40 mA2.4 V21°Single Transverse ModeØ5.6 mm
HL6323MG639 nm30 mW100 mA2.5 V8.5°30°Single Transverse ModeØ5.6 mm
HL6362MG640 nm40 mW90 mA2.5 V10°21°Single Transverse ModeØ5.6 mm
LP642-SF20642 nm20 mW90 mA2.5 V--Single Transverse ModeØ5.6 mm, SM Pigtail
LP642-PF20642 nm20 mW110 mA2.5 V--Single Transverse ModeØ5.6 mm, PM Pigtail
HL6364DG642 nm60 mW120 mA2.5 V10°21°Single Transverse ModeØ5.6 mm
HL6366DG642 nm80 mW150 mA2.5 V10°21°Single Transverse ModeØ5.6 mm
HL6385DG642 nm150 mW250 mA2.6 V17°Single Transverse ModeØ5.6 mm
L650P007650 nm7 mW28 mA2.2 V28°Single Transverse ModeØ5.6 mm
LPS-660-FC658 nm7.5 mW65 mA2.6 V--Single Transverse ModeØ5.6 mm, SM Pigtail
LP660-SF20658 nm20 mW80 mA2.6 V--Single Transverse ModeØ5.6 mm, SM Pigtail
LPM-660-SMA658 nm22.5 mW65 mA2.6 V--MultimodeØ5.6 mm, MM Pigtail
HL6501MG658 nm30 mW75 mA2.6 V8.5°22°Single Transverse ModeØ5.6 mm
L658P040658 nm40 mW75 mA2.2 V10°20°Single Transverse ModeØ5.6 mm
LP660-SF40658 nm40 mW135 mA2.5 V--Single Transverse ModeØ5.6 mm, SM Pigtail
LP660-SF60658 nm60 mW210 mA2.4 V--Single Transverse ModeØ5.6 mm, SM Pigtail
HL6544FM660 nm50 mW115 mA2.3 V10°17°Single Transverse ModeØ5.6 mm
LP660-SF50660 nm50 mW140 mA2.3 V--Single Transverse ModeØ5.6 mm, SM Pigtail
HL6545MG660 nm120 mW170 mA2.45 V10°17°Single Transverse ModeØ5.6 mm
L660P120660 nm120 mW175 mA2.5 V10°17°Single Transverse ModeØ5.6 mm
L670VH1670 nm1 mW2.5 mA2.6 V10°10°Single Transverse ModeTO-46
LPS-675-FC670 nm2.5 mW55 mA2.2 V--Single Transverse ModeØ9 mm, SM Pigtail
HL6748MG670 nm10 mW30 mA2.2 V25°Single Transverse ModeØ5.6 mm
HL6714G670 nm10 mW55 mA<2.7 V22°Single Transverse ModeØ9 mm
HL6756MG670 nm15 mW35 mA2.3 V24°Single Transverse ModeØ5.6 mm
LP685-SF15685 nm15 mW55 mA2.1 V--Single Transverse ModeØ5.6 mm, SM Pigtail
HL6750MG685 nm50 mW70 mA2.3 V21°Single Transverse ModeØ5.6 mm
HL6738MG690 nm30 mW85 mA2.5 V8.5°19°Single Transverse ModeØ5.6 mm
LP705-SF15705 nm15 mW55 mA2.3 V--Single Transverse ModeØ5.6 mm, SM Pigtail
HL7001MG705 nm40 mW75 mA2.5 V18°Single Transverse ModeØ5.6 mm
LP730-SF15730 nm15 mW70 mA2.5 V--Single Transverse ModeØ5.6 mm, SM Pigtail
HL7302MG730 nm40 mW75 mA2.5 V18°Single Transverse ModeØ5.6 mm
L760VH1760 nm0.5 mW3 mA (Max)2.2 V12°12°Single FrequencyTO-46
DBR760PN761 nm9 mW125 mA2.0 V--Single FrequencyButterfly, PM Pigtail
L763VH1763 nm0.5 mW3 mA (Max)2.0 V10°10°Single FrequencyTO-46
DBR767PN767 nm23 mW220 mA1.87 V--Single FrequencyButterfly, PM Pigtail
DBR770PN770 nm35 mW220 mA1.92 V--Single FrequencyButterfly, PM Pigtail
L780P010780 nm10 mW24 mA1.8 V30°Single Transverse ModeØ5.6 mm
DBR780PN780 nm45 mW250 mA1.9 V--Single FrequencyButterfly, PM Pigtail
L785P5785 nm5 mW28 mA1.9 V10°29°Single Transverse ModeØ5.6 mm
LPS-PM785-FC785 nm6.5 mW60 mA---Single Transverse ModeØ5.6 mm, PM Pigtail
LPS-785-FC785 nm10 mW65 mA1.85 V--Single Transverse ModeØ5.6 mm, SM Pigtail
LP785-SF20785 nm20 mW85 mA1.9 V--Single Transverse ModeØ5.6 mm, SM Pigtail
DBR785S785 nm25 mW230 mA2.0 V--Single FrequencyButterfly, SM Pigtail
DBR785P785 nm25 mW230 mA2.0 V--Single FrequencyButterfly, PM Pigtail
L785P25785 nm25 mW45 mA1.9 V30°Single Transverse ModeØ5.6 mm
FPV785S785 nm50 mW410 mA2.2 V--Single FrequencyButterfly, SM Pigtail
FPV785P785 nm50 mW410 mA2.1 V--Single FrequencyButterfly, PM Pigtail
LP785-SAV50785 nm50 mW500 mA2.2 V--Single FrequencyØ9 mm, SM Pigtail
L785P090785 nm90 mW125 mA2.0 V10°17°Single Transverse ModeØ5.6 mm
LP785-SF100785 nm100 mW300 mA2.0 V--Single Transverse ModeØ9 mm, SM Pigtail
FPL785P785 nm200 mW500 mA2.1 V--Single Transverse ModeButterfly, PM Pigtail
FPL785S-250785 nm250 mW (Min)500 mA2.0 V--Single Transverse ModeButterfly, SM Pigtail
LD785-SEV300785 nm300 mW500 mA (Max)2.0 V16°Single FrequencyØ9 mm
LD785-SH300785 nm300 mW400 mA2.0 V18°Single Transverse ModeØ9 mm
FPL785C785 nm300 mW400 mA2.0 V18°Single Transverse Mode3 mm x 5 mm Submount
LD785-SE400785 nm400 mW550 mA2.0 V16°Single Transverse ModeØ9 mm
FPV785M785 nm600 mW1100 mA1.9 V--MultimodeButterfly, MM Pigtail
L795VH1795 nm0.25 mW1.2 mA1.8 V20°12°Single FrequencyTO-46
DBR795PN795 nm40 mW230 mA2.0 V--Single FrequencyButterfly, PM Pigtail
DBR808PN808 nm42 mW250 mA2 V--Single FrequencyButterfly, PM Pigtail
LP808-SA60808 nm60 mW150 mA1.9 V--Single Transverse ModeØ9 mm, SM Pigtail
M9-808-0150808 nm150 mW180 mA1.9 V17°Single Transverse ModeØ9 mm
L808P200808 nm200 mW260 mA2 V10°30°MultimodeØ5.6 mm
FPL808P808 nm200 mW600 mA2.1 V--Single Transverse ModeButterfly, PM Pigtail
FPL808S808 nm200 mW750 mA2.3 V--Single Transverse ModeButterfly, SM Pigtail
L808H1808 nm300 mW400 mA2.1 V14°Single Transverse ModeØ9 mm
LD808-SE500808 nm500 mW750 mA2.2 V14°Single Transverse ModeØ9 mm
LD808-SEV500808 nm500 mW800 mA (Max)2.2 V14°Single FrequencyØ9 mm
L808P500MM808 nm500 mW650 mA1.8 V12°30°MultimodeØ5.6 mm
L808P1000MM808 nm1000 mW1100 mA2 V30°MultimodeØ9 mm
DBR816PN816 nm45 mW250 mA1.95 V--Single FrequencyButterfly, PM Pigtail
LP820-SF80820 nm80 mW230 mA2.3 V--Single Transverse ModeØ5.6 mm, SM Pigtail
L820P100820 nm100 mW145 mA2.1 V17°Single Transverse ModeØ5.6 mm
L820P200820 nm200 mW250 mA2.4 V17°Single Transverse ModeØ5.6 mm
DBR828PN828 nm24 mW250 mA2.0 V--Single FrequencyButterfly, PM Pigtail
LPS-830-FC830 nm10 mW120 mA---Single Transverse ModeØ5.6 mm, SM Pigtail
LPS-PM830-FC830 nm10 mW50 mA2.0 V--Single Transverse ModeØ5.6 mm, PM Pigtail
LP830-SF30830 nm30 mW115 mA1.9 V--Single Transverse ModeØ9 mm, SM Pigtail
HL8338MG830 nm50 mW75 mA1.9 V22°Single Transverse ModeØ5.6 mm
L830H1830 nm250 mW3 A (Max)2 V10°Single Transverse ModeØ9 mm
FPL830P830 nm300 mW900 mA2.22 V--Single Transverse ModeButterfly, PM Pigtail
FPL830S830 nm350 mW900 mA2.5 V--Single Transverse ModeButterfly, SM Pigtail
LD830-SE650830 nm650 mW900 mA2.3 V13°Single Transverse ModeØ9 mm
LD830-MA1W830 nm1 W2 A2.1 V24°MultimodeØ9 mm
LD830-ME2W830 nm2 W3 A (Max)2.0 V21°MultimodeØ9 mm
L840P200840 nm200 mW255 mA2.4 V917Single Transverse ModeØ5.6 mm
L850VH1850 nm1 mW6 mA (Max)2 V12°12°Single FrequencyTO-46
L850P010850 nm10 mW50 mA2 V10°30°Single Transverse ModeØ5.6 mm
L850P030850 nm30 mW65 mA2 V8.5°30°Single Transverse ModeØ5.6 mm
FPV852S852 nm20 mW400 mA2.2 V--Single FrequencyButterfly, SM Pigtail
FPV852P852 nm20 mW400 mA2.2 V--Single FrequencyButterfly, PM Pigtail
DBR852PN852 nm24 mW300 mA2.0 V--Single FrequencyButterfly, PM Pigtail
LP852-SF30852 nm30 mW115 mA1.9 V--Single Transverse ModeØ9 mm, SM Pigtail
L852P50852 nm50 mW75 mA1.9 V22°Single Transverse ModeØ5.6 mm
LP852-SF60852 nm60 mW150 mA2.0 V--Single Transverse ModeØ9 mm, SM Pigtail
L852P100852 nm100 mW120 mA1.9 V28°Single Transverse ModeØ9 mm
L852P150852 nm150 mW170 mA1.9 V18°Single Transverse ModeØ9 mm
L852SEV1852 nm270 mW400 mA (Max)2.0 V12°Single FrequencyØ9 mm
L852H1852 nm300 mW415 mA (Max)2 V15°Single Transverse ModeØ9 mm
FPL852P852 nm300 mW900 mA2.35 V--Single Transverse ModeButterfly, PM Pigtail
FPL852S852 nm350 mW900 mA2.5 V--Single Transverse ModeButterfly, SM Pigtail
LD852-SE600852 nm600 mW950 mA2.3 V7° (1/e2)13° (1/e2)Single Transverse ModeØ9 mm
LD852-SEV600852 nm600 mW1050 mA (Max)2.2 V13° (1/e2)Single FrequencyØ9 mm
LP880-SF3880 nm3 mW25 mA2.2 V--Single Transverse ModeØ5.6 mm, SM Pigtail
L880P010880 nm10 mW30 mA2.0 V12°37°Single Transverse ModeØ5.6 mm
L895VH1895 nm0.2 mW1.4 mA1.6 V20°13°Single FrequencyTO-46
DBR895PN895 nm12 mW300 mA2 V--Single FrequencyButterfly, PM Pigtail
LP904-SF3904 nm3 mW30 mA1.5 V--Single Transverse ModeØ5.6 mm, SM Pigtail
L904P010904 nm10 mW50 mA2.0 V10°30°Single Transverse ModeØ5.6 mm
LP915-SF40915 nm40 mW130 mA1.5 V--Single Transverse ModeØ9 mm, SM Pigtail
DBR935PN935 nm13 mW300 mA1.75 V--Single FrequencyButterfly, PM Pigtail
LP940-SF30940 nm30 mW90 mA1.5 V--Single Transverse ModeØ9 mm, SM Pigtail
M9-940-0200940 nm200 mW270 mA1.9 V28°Single Transverse ModeØ9 mm
L960H1960 nm250 mW400 mA2.1 V11°12°Single Transverse ModeØ9 mm
FPV976S976 nm30 mW400 mA (Max)2.2 V--Single FrequencyButterfly, SM Pigtail
FPV976P976 nm30 mW400 mA (Max)2.2 V--Single FrequencyButterfly, PM Pigtail
DBR976PN976 nm33 mW450 mA2.0 V--Single FrequencyButterfly, PM Pigtail
L976SEV1976 nm270 mW400 mA (Max)2.0 V12°Single FrequencyØ9 mm
BL976-SAG3976 nm300 mW470 mA2.0 V--Single Transverse ModeButterfly, SM Pigtail
BL976-PAG500976 nm500 mW830 mA2.0 V--Single Transverse ModeButterfly, PM Pigtail
BL976-PAG700976 nm700 mW1090 mA2.0 V--Single Transverse ModeButterfly, PM Pigtail
BL976-PAG900976 nm900 mW1480 mA2.5 V--Single Transverse ModeButterfly, PM Pigtail
L980P010980 nm10 mW25 mA2 V10°30°Single Transverse ModeØ5.6 mm
LP980-SF15980 nm15 mW70 mA1.5 V--Single Transverse ModeØ5.6 mm, SM Pigtail
L980P030980 nm30 mW50 mA1.5 V10°35°Single Transverse ModeØ5.6 mm
L980P100A980 nm100 mW150 mA1.6 V32°MultimodeØ5.6 mm
LP980-SA60980 nm60 mW230 mA2.0 V--Single Transverse ModeØ9.0 mm, SM Pigtail
L980H1980 nm200 mW300 mA (Max)2.0 V13°Single Transverse ModeØ9 mm
L980P200980 nm200 mW300 mA1.5 V30°MultimodeØ5.6 mm
DBR1060SN1060 nm130 mW650 mA2.0 V--Single FrequencyButterfly, SM Pigtail
DBR1060PN1060 nm130 mW650 mA1.8 V--Single FrequencyButterfly, PM Pigtail
DBR1064S1064 nm40 mW150 mA2.0 V--Single FrequencyButterfly, SM Pigtail
DBR1064P1064 nm40 mW150 mA2.0 V--Single FrequencyButterfly, PM Pigtail
DBR1064PN1064 nm110 mW550 mA2.0 V--Single FrequencyButterfly, PM Pigtail
LPS-1060-FC1064 nm50 mW220 mA1.4 V--Single Transverse ModeØ9 mm, SM Pigtail
M9-A64-02001064 nm200 mW280 mA1.7 V28°Single Transverse ModeØ9 mm
L1064H11064 nm300 mW700 mA1.92 V7.6°13.5°Single Transverse ModeØ9 mm
L1064H21064 nm450 mW1100 mA1.92 V7.6°13.5°Single Transverse ModeØ9 mm
DBR1083PN1083 nm100 mW500 mA1.75 V--Single FrequencyButterfly, PM Pigtail
L1270P5DFB1270 nm5 mW15 mA1.1 VSingle FrequencyØ5.6 mm
L1290P5DFB1290 nm5 mW16 mA1.0 VSingle FrequencyØ5.6 mm
LP1310-SAD21310 nm2.0 mW40 mA1.1 V--Single FrequencyØ5.6 mm, SM Pigtail
LP1310-PAD21310 nm2.0 mW40 mA1.0 V--Single FrequencyØ5.6 mm, PM Pigtail
LPS-PM1310-FC1310 nm2.5 mW20 mA1.1 V--Single Transverse ModeØ5.6 mm, PM Pigtail
L1310P5DFB1310 nm5 mW16 mA1.0 VSingle FrequencyØ5.6 mm
LPSC-1310-FC1310 nm50 mW350 mA2 V--Single Transverse ModeØ5.6 mm, SM Pigtail
FPL1053S1310 nm130 mW400 mA1.7 V--Single Transverse ModeButterfly, SM Pigtail
FPL1053P1310 nm130 mW400 mA1.7 V--Single Transverse ModeButterfly, PM Pigtail
FPL1053T1310 nm300 mW (Pulsed)750 mA2 V15°28°Single Transverse ModeØ5.6 mm
FPL1053C1310 nm300 mW (Pulsed)750 mA2 V15°27°Single Transverse ModeChip on Submount
L1310G11310 nm2000 mW5 A1.5 V24°MultimodeØ9 mm
L1330P5DFB1330 nm5 mW14 mA1.0 VSingle FrequencyØ5.6 mm
L1370G11370 nm2000 mW5 A1.4 V22°MultimodeØ9 mm
BL1425-PAG5001425 nm500 mW1600 mA2.0 V--Single Transverse ModeButterfly, PM Pigtail
BL1436-PAG5001436 nm500 mW1600 mA2.0 V--Single Transverse ModeButterfly, PM Pigtail
L1450G11450 nm2000 mW5 A1.4 V22°MultimodeØ9 mm
BL1456-PAG5001456 nm500 mW1600 mA2.0 V--Single Transverse ModeButterfly, PM Pigtail
L1470P5DFB1470 nm5 mW19 mA1.0 VSingle FrequencyØ5.6 mm
L1480G11480 nm2000 mW5 A1.6 V20°MultimodeØ9 mm
L1490P5DFB1490 nm5 mW24 mA1.0 VSingle FrequencyØ5.6 mm
L1510P5DFB1510 nm5 mW20 mA1.0 VSingle FrequencyØ5.6 mm
L1530P5DFB1530 nm5 mW21 mA1.0 VSingle FrequencyØ5.6 mm
LPS-1550-FC1550 nm1.5 mW30 mA1.0 V--Single Transverse ModeØ5.6 mm, SM Pigtail
LPS-PM1550-FC1550 nm1.5 mW30 mA1.1 V--Single Transverse ModeØ5.6 mm, SM Pigtail
LP1550-SAD21550 nm2.0 mW40 mA1.0 V--Single FrequencyØ5.6 mm, SM Pigtail
LP1550-PAD21550 nm2.0 mW40 mA1.0 V--Single FrequencyØ5.6 mm, PM Pigtail
L1550P5DFB1550 nm5 mW20 mA1.0 V10°Single FrequencyØ5.6 mm
ML925B45F1550 nm5 mW30 mA1.1 V25°30°Single Transverse ModeØ5.6 mm
SFL1550S1550 nm40 mW300 mA1.5 V--Single FrequencyButterfly, SM Pigtail
SFL1550P1550 nm40 mW300 mA1.5 V--Single FrequencyButterfly, PM Pigtail
LPSC-1550-FC1550 nm50 mW250 mA2 V--Single Transverse ModeØ5.6 mm, SM Pigtail
FPL1009S1550 nm100 mW400 mA1.4 V--Single Transverse ModeButterfly, SM Pigtail
FPL1009P1550 nm100 mW400 mA1.4 V--Single Transverse ModeButterfly, PM Pigtail
ULN15PC1550 nm140 mW650 mA3.0 V--Single FrequencyExtended Butterfly, PM Pigtail
ULN15PT1550 nm140 mW650 mA3.0 V--Single FrequencyExtended Butterfly, PM Pigtail
FPL1001C1550 nm150 mW400 mA1.4 V18°31°Single Transverse ModeChip on Submount
FPL1055T1550 nm300 mW (Pulsed)750 mA2 V15°28°Single Transverse ModeØ5.6 mm
FPL1055C1550 nm300 mW (Pulsed)750 mA2 V15°28°Single Transverse ModeChip on Submount
L1550G11550 nm1700 mW5 A1.5 V28°MultimodeØ9 mm
DFB15501555 nm100 mW (Min)1000 mA (Max)3.0 V--Single FrequencyButterfly, SM Pigtail
DFB1550N1555 nm130 mW (Min)1800 mA (Max)3.0 V--Single FrequencyButterfly, SM Pigtail
DFB1550P1555 nm100 mW (Min)1000 mA (Max)3.0 V--Single FrequencyButterfly, PM Pigtail
DFB1550PN1555 nm130 mW (Min)1800 mA (Max)3.0 V--Single FrequencyButterfly, PM Pigtail
L1570P5DFB1570 nm5 mW25 mA1.0 VSingle FrequencyØ5.6 mm
L1575G11575 nm1700 mW5 A1.5 V28°MultimodeØ9 mm
LPSC-1625-FC1625 nm50 mW350 mA1.5 V--Single Transverse ModeØ5.6 mm, SM Pigtail
FPL1054S1625 nm80 mW400 mA1.7 V--Single Transverse ModeButterfly, SM Pigtail
FPL1054P1625 nm80 mW400 mA1.7 V--Single Transverse ModeButterfly, PM Pigtail
FPL1054C1625 nm250 mW (Pulsed)750 mA2 V15°28°Single Transverse ModeChip on Submount
FPL1054T1625 nm200 mW (Pulsed)750 mA2 V15°28°Single Transverse ModeØ5.6 mm
DFB16421642 nm80 mW900 mA (Max)3.0 V--Single FrequencyButterfly, SM Pigtail
DFB1642P1642 nm80 mW900 mA (Max)3.0 V--Single FrequencyButterfly, PM Pigtail
DFB16461646 nm80 mW900 mA (Max)3.0 V--Single FrequencyButterfly, SM Pigtail
DFB1646P1646 nm80 mW900 mA (Max)3.0 V--Single FrequencyButterfly, PM Pigtail
FPL1059S1650 nm80 mW400 mA1.7 V--Single Transverse ModeButterfly, SM Pigtail
FPL1059P1650 nm80 mW400 mA1.7 V--Single Transverse ModeButterfly, PM Pigtail
DFB16501650 nm80 mW900 mA (Max)3.0 V--Single FrequencyButterfly, SM Pigtail
DFB1650P1650 nm80 mW900 mA (Max)3.0 V--Single FrequencyButterfly, PM Pigtail
FPL1059C1650 nm225 mW (Pulsed)750 mA2 V15°28°Single Transverse ModeChip on Submount
FPL1059T1650 nm225 mW (Pulsed)750 mA2 V15°28°Single Transverse ModeØ5.6 mm
DFB16541654 nm80 mW900 mA (Max)3.0 V--Single FrequencyButterfly, SM Pigtail
DFB1654P1654 nm80 mW900 mA (Max)3.0 V--Single FrequencyButterfly, PM Pigtail
FPL1940S1940 nm15 mW400 mA2 V--Single Transverse ModeButterfly, SM Pigtail
FPL2000S2 µm15 mW400 mA2 V--Single Transverse ModeButterfly, SM Pigtail
FPL2000C2 µm30 mW400 mA5.2 V19°Single Transverse ModeChip on Submount
ID3250HHLH3.00 - 3.50 µm (DFB)5 mW400 mA (Max)5 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
IF3400T13.40 µm (FP)30 mW300 mA4 V40°70°Single Transverse ModeØ9 mm
ID3750HHLH3.50 - 4.00 µm (DFB)5 mW300 mA (Max)5 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QF3850T13.85 µm (FP)200 mW600 mA (Max)13.5 V30°40°Single Transverse ModeØ9 mm
QF3850HHLH3.85 µm (FP)320 mW (Min)1100 mA (Max)13 V6 mrad (0.34°)6 mrad (0.34°)Single Transverse ModeHorizontal HHL
QF4040HHLH4.05 µm (FP)320 mW (Min)1100 mA (Max)13 V6 mrad (0.34°)6 mrad (0.34°)Single Transverse ModeHorizontal HHL
QD4500CM14.00 - 5.00 µm (DFB)40 mW500 mA (Max)10.5 V30°40°Single FrequencyTwo-Tab C-Mount
QD4500HHLH4.00 - 5.00 µm (DFB)80 mW500 mA (Max)11 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QF4050T24.05 µm (FP)70 mW250 mA12 V30°40°Single Transverse ModeØ9 mm
QF4050C24.05 µm (FP)300 mW400 mA12 V3042Single Transverse ModeTwo-Tab C-Mount
QF4050T14.05 µm (FP)300 mW600 mA (Max)12.0 V30°40°Single Transverse ModeØ9 mm
QF4050D24.05 µm (FP)800 mW750 mA13 V30°40°Single Transverse ModeD-Mount
QF4050D34.05 µm (FP)1200 mW1000 mA13 V30°40°Single Transverse ModeD-Mount
QD4472HH4.472 µm (DFB)85 mW500 mA (Max)11 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QF4600T24.60 µm (FP)200 mW500 mA (Max)13.0 V30°40°Single Transverse ModeØ9 mm
QF4600T14.60 µm (FP)400 mW800 mA (Max)12.0 V30°40°Single Transverse ModeØ9 mm
QF4600C24.60 µm (FP)600 mW600 mA12 V30°42°Single Transverse ModeTwo-Tab C-Mount
QF4600T34.60 µm (FP)1000 mW800 mA (Max)13 V30°40°Single Transverse ModeØ9 mm
QF4600D44.60 µm (FP)2500 mW1800 mA12.5 V40°30°Single Transverse ModeD-Mount
QF4600D34.60 µm (FP)3000 mW1700 mA12.5 V30°40°Single Transverse ModeD-Mount
QD4602HH4.602 µm (DFB)150 mW1000 mA (Max)12 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QF4650HHLH4.65 µm (FP)1500 mW (Min)1100 mA12 V6 mrad (0.34°)6 mrad (0.34°)Single Transverse ModeHorizontal HHL
QD5500CM15.00 - 6.00 µm (DFB)40 mW700 mA (Max)9.5 V30°45°Single FrequencyTwo-Tab C-Mount
QD5500HHLH5.00 - 6.00 µm (DFB)150 mW500 mA (Max)11 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QD5250C25.20 - 5.30 µm (DFB)60 mW700 mA (Max)9.5 V30°45°Single FrequencyTwo-Tab C-Mount
QD5263HH5.263 µm (DFB)130 mW1000 mA (Max)12 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QD6500CM16.00 - 7.00 µm (DFB)40 mW650 mA (Max)10 V35°50°Single FrequencyTwo-Tab C-Mount
QD6500HHLH6.00 - 7.00 µm (DFB)80 mW600 mA (Max)11 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QD6134HH6.134 µm (DFB)50 mW1000 mA (Max)12 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QD7500CM17.00 - 8.00 µm (DFB)40 mW600 mA (Max)10 V40°50°Single FrequencyTwo-Tab C-Mount
QD7500HHLH7.00 - 8.00 µm (DFB)50 mW700 mA (Max)12 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QD7500DM17.00 - 8.00 µm (DFB)100 mW600 mA (Max)11.5 V40°55°Single FrequencyD-Mount
QD7416HH7.416 µm (DFB)100 mW1000 mA (Max)12 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QD7716HH7.716 µm (DFB)30 mW1000 mA (Max)12 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QF7900HB7.9 µm (FP)700 mW1600 mA (Max)9 V6 mrad (0.34°)6 mrad (0.34°)Single Transverse ModeHorizontal HHL
QD7901HH7.901 µm (DFB)50 mW700 mA (Max)10 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QD8050CM18.00 - 8.10 µm (DFB)100 mW1000 mA (Max)9.5 V55°70°Single FrequencyTwo-Tab C-Mount
QD8500CM18.00 - 9.00 µm (DFB)100 mW900 mA (Max)9.5 V40°55°Single FrequencyTwo-Tab C-Mount
QD8500HHLH8.00 - 9.00 µm (DFB)100 mW600 mA (Max)10.2 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QF8450C28.45 µm (FP)300 mW750 mA9 V40°60°Single Transverse ModeTwo-Tab C-Mount
QF8500HB8.5 µm (FP)500 mW2000 mA (Max)9 V6 mrad (0.34°)6 mrad (0.34°)Single Transverse ModeHorizontal HHL
QD8650CM18.60 - 8.70 µm (DFB)50 mW900 mA (Max)9.5 V55°70°Single FrequencyTwo-Tab C-Mount
QD8912HH8.912 µm (DFB)150 mW1000 mA (Max)12 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QD9500CM19.00 - 10.00 µm (DFB)60 mW800 mA (Max)9.5 V40°55°Single FrequencyTwo-Tab C-Mount
QD9500HHLH9.00 - 10.00 µm (DFB)100 mW600 mA (Max)10.2 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QD9062HH9.062 µm (DFB)130 mW1000 mA (Max)12 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QF9150C29.15 µm (FP)200 mW850 mA11 V40°60°Single Transverse ModeTwo-Tab C-Mount
QF9200HB9.2 µm (FP)250 mW2000 mA (Max)9 V6 mrad (0.34°)6 mrad (0.34°)Single Transverse ModeHorizontal HHL
QF9500T19.5 µm (FP)300 mW550 mA12 V40°55°Single Transverse ModeØ9 mm
QD9550C29.50 - 9.60 µm (DFB)60 mW800 mA (Max)9.5 V40°55°Single FrequencyTwo-Tab C-Mount
QF9550CM19.55 µm (FP)80 mW1500 mA7.8 V35°60°Single Transverse ModeTwo-Tab C-Mount
QD9697HH9.697 µm (DFB)80 mW1000 mA (Max)12 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QD10500CM110.00 - 11.00 µm (DFB)40 mW600 mA (Max)10 V40°55°Single FrequencyTwo-Tab C-Mount
QD10500HHLH10.00 - 11.00 µm (DFB)50 mW700 mA (Max)12 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QD10530HH10.530 µm (DFB)50 mW1000 mA (Max)12 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QD10549HH10.549 µm (DFB)60 mW1000 mA (Max)12 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL
QD10622HH10.622 µm (DFB)60 mW1000 mA (Max)12 V6 mrad (0.34°)6 mrad (0.34°)Single FrequencyHorizontal HHL

The rows shaded green above denote single-frequency lasers.
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1555 nm DFB Laser Diodes

Item # Info Center Wavelength Minimum
Power
Max Drive
Currenta
Typical
Linewidth
Package Pin Code Laser Mode Monitor
Photodiodeb
Wavelength
Tested
Built-In
Isolator
Targeted
Gasc
DFB1550 info 1555 nm 100 mW 1000 mA 150 kHz SM Butterfly, FC/APC 14-Pin Type 1d Single Frequencye Yes Yes Yes N/A
DFB1550P info PMf Butterfly, FC/APC
DFB1550N info 130 mW 1800 mA 50 kHz SM Butterfly, FC/APC
DFB1550PN info PMf Butterfly, FC/APC
  • The maximum output power and drive current will vary from device to device and are specified on the serial-number-specific data sheet. Do not exceed the maximum optical power or maximum drive current, whichever occurs first.
  • Laser diodes with a built-in monitor photodiode can operate at constant power.
  • See the Spectroscopy Tab for Further Discussion
  • See the Pin Diagram Tab for Pin Configuration.
  • Single Longitudinal Mode and Single Transverse Mode
  • The slow axis of the polarization-maintaining fiber is aligned to the connector key.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
Choose ItemDFB1550 Support Documentation
DFB15501555 nm, 100 mW (Min.), Butterfly DFB Laser, SM Fiber, FC/APC, Internal Isolator
$3,213.00
Today
Choose ItemDFB1550P Support Documentation
DFB1550P1555 nm, 100 mW (Min.), Butterfly DFB Laser, PM Fiber, FC/APC, Internal Isolator
$3,376.20
Today
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DFB1550N1555 nm, 150 mW (Typ.), Butterfly DFB Laser, SM Fiber, FC/APC, Internal Isolator
$3,962.00
Today
Choose ItemDFB1550PN Support Documentation
DFB1550PN1555 nm, 150 mW (Typ.), Butterfly DFB Laser, PM Fiber, FC/APC, Internal Isolator
$4,126.20
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1642 nm - 1654 nm DFB Laser Diodes

Item # Info Center Wavelength Minimum
Power
Max Drive
Currenta
Typical
Linewidth
Package Pin Code Laser Mode Monitor
Photodiodeb
Wavelength
Tested
Built-In
Isolator
Targeted
Gasc
DFB1642 info 1642 nm 70 mW 900 mA 50 kHz SM Butterfly, FC/APC 14-Pin Type 1e Single
Frequencyf
Yes Yes Yes CH4 (Methane)g
DFB1642P info 70 mW 900 mA 50 kHz PMd Butterfly, FC/APC
DFB1646 info 1646 nm 70 mW 900 mA 50 kHz SM Butterfly, FC/APC
DFB1646P info 70 mW 900 mA 50 kHz PMd Butterfly, FC/APC
DFB1650 info 1650 nm 70 mW 900 mA 50 kHz SM Butterfly, FC/APC
DFB1650P info 70 mW 900 mA 50 kHz PMd Butterfly, FC/APC
DFB1654 info 1654 nm 70 mW 900 mA 50 kHz SM Butterfly, FC/APC
DFB1654P info 70 mW 900 mA 50 kHz PMd Butterfly, FC/APC
  • The maximum output power and drive current will vary from device to device and are specified on the serial-number-specific data sheet. Do not exceed the maximum optical power or maximum drive current, whichever occurs first.
  • Laser diodes with a built-in monitor photodiode can operate at constant power.
  • See the Spectroscopy Tab for Further Discussion
  • The slow axis of the polarization-maintaining fiber is aligned to the connector key.
  • See the Pin Diagram Tab for Pin Configuration
  • Single Longitudinal Mode and Single Transverse Mode
  • A comparison between the center wavelength range and the spectral lines of methane can be found by clicking the blue info icon above (info icon) and selecting the Methane tab.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal Price Available
Choose ItemDFB1642 Support Documentation
DFB1642NEW!1642 nm, 80 mW (Typ.), Butterfly DFB Laser, SM Fiber, FC/APC, Internal Isolator
$3,013.00
Today
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DFB1642PNEW!1642 nm, 80 mW (Typ.), Butterfly DFB Laser, PM Fiber, FC/APC, Internal Isolator
$3,176.20
Today
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DFB1646NEW!1646 nm, 80 mW (Typ.), Butterfly DFB Laser, SM Fiber, FC/APC, Internal Isolator
$3,013.00
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DFB1646PNEW!1646 nm, 80 mW (Typ.), Butterfly DFB Laser, PM Fiber, FC/APC, Internal Isolator
$3,176.20
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DFB1650NEW!1650 nm, 80 mW (Typ.), Butterfly DFB Laser, SM Fiber, FC/APC, Internal Isolator
$3,013.00
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DFB1650PNEW!1650 nm, 80 mW (Typ.), Butterfly DFB Laser, PM Fiber, FC/APC, Internal Isolator
$3,176.20
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DFB1654NEW!1654 nm, 80 mW (Typ.), Butterfly DFB Laser, SM Fiber, FC/APC, Internal Isolator
$3,013.00
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Choose ItemDFB1654P Support Documentation
DFB1654PNEW!1654 nm, 80 mW (Typ.), Butterfly DFB Laser, PM Fiber, FC/APC, Internal Isolator
$3,176.20
Today