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RGB Wavelength Combiners


  • Combine Three Input Wavelengths into a Single Output
  • Designed for Common Visible Wavelength Combinations
  • Unterminated, FC/PC, or FC/APC Outputs

RGB50HF

488, 561, and 640 nm Combiner with FC/PC Connectors

RGB26HB

473, 532, and 640 nm Combiner, No Connectors

Application Idea

RGB46HA Combiner (FC/APC Connectors) Mounted on Thorlabs' FCQB Mounting Base

Related Items

General Specifications
Port Configuration 1x3
Termination 2.0 mm Narrow Key FC/PC or FC/APC
or Unterminated (Scissor Cut)
Fiber Lead Length and Tolerance 0.8 +0.075 m/-0.0 m
Jacket Ø900 µm Loose Hytrel® Tube
Pigtail Tensile Load 5 N
Package Dimensions 3.94" x 3.15" x 0.39"
(100.0 mm x 80.0 mm x 10.0 mm)
Mounting Four Through Holes for #2 (M2) Screwsa
Operating Temperature -40 to 85 °C
Storage Temperature -40 to 85 °C
  • Through holes provide compatibility with the FCQB mounting base, available below.
RGB Combiner
Click for Details

The ports on the RGB combiner are labeled with the wavelength and feature color-coded jackets on the fiber leads. The common port (COM) has a white jacket.

Features

  • Combine Three Wavelengths into a Single Fiber Output
  • Three Wavelength Combinations Available
    • 473, 532, and 640 nm
    • 488, 532, and 640 nm
    • 488, 561, and 640 nm
  • Color-Coded Inputs for Easy Identification
  • Reversible: Can Also be Used to Split 3 Input Colors
  • 0.8 m Long Single Mode Fiber Leads on All Ports
  • Available with 2.0 mm Narrow Key FC/PC or FC/APC Connectors or Unterminated Leads
  • Each Combiner is Shipped with an Individualized Product Data Sheet (Click Here for RGB26HB, RGB46HA, and RGB50HF Sample Data Sheets)
  • Mount to an Optical Table with the FCQB Mounting Base (Available Below)

Thorlabs' RGB combiners, also known as 3-wavelength combiners, allow three colors to be combined into a single output fiber. Three wavelength combinations are available: 473, 532, and 640 nm; 488, 532, and 640 nm; or 488, 561, and 640 nm. They can also be used in reverse, splitting three wavelengths entering the common port into three separate output ports.

As seen in the image to the above right, a label on the top of the housing indicates the wavelength for each port, or channel. Additionally, the Ø900 µm loose Hytrel® tube on each fiber leg is color coded: white indicates the common port and the colors of the other ports match the output wavelength. Each of the ports with an assigned wavelength has a ±5 nm bandwidth around that center wavelength. The graphs provided below give an example of the insertion loss in each channel for each of the color combinations offered. An insertion loss close to zero indicates high throughput at that wavelength. These combiners provide low cross-talk (good isolation) between channels: for each channel, a signal at the center wavelengths of the other two channels are suppressed by at least 10 dB compared to the throughput at that channel's specified wavelength.

The RGB combiners are tested during the manufacturing process to ensure that they meet specifications. Each RGB combiner is shipped with a detailed test report that includes transmission and isolation measurements as well an insertion loss plot showing the performance of Ports 1, 2, and 3. Sample data sheets for RGB combiners can be viewed here: RGB26HB, RGB46HA, or RGB50HF.

Each combiner is contained in a compact 3.94" x 3.15" x 0.39" (100.0 mm x 80.0 mm x 10.0 mm) housing that includes four through holes for mounting the device to our FCQB mounting base (available separately below). All fiber leads are jacketed in Ø900 µm loose Hytrel® tubes and are 0.8 m long. These combiners are offered from stock with 2.0 mm narrow key FC/PC or FC/APC connectors or with unterminated leads. Other fiber types and select wavelength combinations are available upon request. If a custom connector configuration is needed, same-day turnaround is possible for small orders if the order is placed before 12 PM EST. Please contact Technical Support with inquiries.

Click the Support Documentation icon document icon or Part Number below to view the available support documentation
Part NumberProduct Description
FCQB Support Documentation FCQB:Mounting Base for Thorlabs' RGB Combiners and 1x4 SM Couplers
RGB26HA Support Documentation RGB26HA:RGB Combiner: 473, 532, and 640 nm, FC/APC Connectors
RGB26HB Support Documentation RGB26HB:RGB Combiner: 473, 532, and 640 nm, No Connectors
RGB26HF Support Documentation RGB26HF:RGB Combiner: 473, 532, and 640 nm, FC/PC Connectors
RGB46HA Support Documentation RGB46HA:RGB Combiner: 488, 532, and 640 nm, FC/APC Connectors
Part NumberProduct Description
RGB46HB Support Documentation RGB46HB:RGB Combiner: 488, 532, and 640 nm, No Connectors
RGB46HF Support Documentation RGB46HF:RGB Combiner: 488, 532, and 640 nm, FC/PC Connectors
RGB50HA Support Documentation RGB50HA:RGB Combiner: 488, 561, and 640 nm, FC/APC Connectors
RGB50HB Support Documentation RGB50HB:RGB Combiner: 488, 561, and 640 nm, No Connectors
RGB50HF Support Documentation RGB50HF:RGB Combiner: 488, 561, and 640 nm, FC/PC Connectors

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Posted Comments:
Poster:linh.nguyen01
Posted Date:2013-07-22 02:29:40.437
Would it be possible to use a FC/APC connector to the RGB FC/PC input port? I have a laser whose fibre pigtail is APC type.
Poster:antony.galea
Posted Date:2013-02-15 03:17:02.047
Other wavelengths would be of interest, even if the coupling was lossy. Wavelengths I work with include 473, 488, 532, 635 & 670nm - 4 of these are provided by an MCLS-1. The lower wavelengths are of the greater interest.
Poster:cdaly
Posted Date:2013-02-20 16:06:00.0
Response from Chris at Thorlabs: Thank you for using our web feedback. We may be able to provide an RGB combiner with a custom wavelength configuration for you. I will contact you directly to discuss this further.
Poster:tcohen
Posted Date:2012-07-05 14:41:00.0
Response from Tim at Thorlabs: Thank you for your interest in our RGB combiners! We do have plans to expand our offering to other wavelengths in the future. I will contact you to address your immediate needs.
Poster:cbrideau
Posted Date:2012-06-29 20:22:13.0
Would it be possible to get this for 405, 488, and 638nm, coupling into your new S405-XP 400-680nm single mode fiber? I am interested in potentially using this module with your MCLS1 4 channel laser diode source.
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3-Wavelength Combiner: 473, 532, and 640 nm

RGB50 Combiner Insertion Loss
Click to Enlarge

Click Here for Raw Data
This plot shows an example of the spectral performance of a RGB26 3-wavelength combiner. The lines represent the spectral response of each channel, while the colored regions denote the bandwidth around the center wavelengths. This data is typical; performance of each coupler may vary within the coupler specifications. Data was obtained without connectors.
RGB26 Specifications
Port 1 2 3
Color Blue Green Red
Wavelength 473 nm 532 nm 640 nm
Bandwidtha ±5 nm ±5 nm ±5 nm
Insertion Lossa ≤0.7 dB ≤0.7 dB ≤0.7 dB
Transmissionb ≥85% ≥85% ≥85%
Isolationa,c @ 473 nm N/A ≥10 dB ≥10 dB
@ 532 nm ≥10 dB N/A ≥10 dB
@ 640 nm ≥10 dB ≥10 dB N/A
Polarization-Dependent Lossa ≤0.2 dB
Optical Return Lossa ≥60 dB
Fiber Typed 460HP
Max Power Level 50 mW
  • All values are specified over the bandwidth without connectors.
  • Calculated from insertion loss data above.
  • Isolation represents the maximum cross-talk between the channels.
  • Other fiber types are available upon request. Please contact Technical Support with inquiries.
Click for Sample Data Sheet

Each RGB combiner is shipped with a detailed test report that includes transmission and isolation measurements as well an insertion loss plot showing the performance of Ports 1, 2, and 3.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
RGB26HB Support Documentation
RGB26HBNEW!RGB Combiner: 473, 532, and 640 nm, No Connectors
$850.00
Today
RGB26HF Support Documentation
RGB26HFNEW!RGB Combiner: 473, 532, and 640 nm, FC/PC Connectors
$890.00
Today
RGB26HA Support Documentation
RGB26HANEW!RGB Combiner: 473, 532, and 640 nm, FC/APC Connectors
$890.00
Today

3-Wavelength Combiner: 488, 532, and 640 nm

RGB50 Combiner Insertion Loss
Click to Enlarge

Click Here for Raw Data
This plot shows the spectral performance of a RGB46 3-wavelength combiner. The lines represent the spectral response of each channel, while the colored regions denote the bandwidth around the center wavelengths. This data is typical; performance of each coupler may vary within the coupler specifications. Data was obtained without connectors.
RGB46 Specifications
Port 1 2 3
Color Blue Green Red
Wavelength 488 nm 532 nm 640 nm
Bandwidtha ±5 nm ±5 nm ±5 nm
Insertion Lossa ≤0.7 dB ≤0.7 dB ≤0.7 dB
Transmissionb ≥85% ≥85% ≥85%
Isolationa,c @ 488 nm N/A ≥12 dB ≥12 dB
@ 532 nm ≥12 dB N/A ≥12 dB
@ 640 nm ≥12 dB ≥12 dB N/A
Polarization-Dependent Lossa ≤0.2 dB
Optical Return Lossa ≥60 dB
Fiber Typed 460HP
Max Power Level 50 mW
  • All values are specified over the bandwidth without connectors.
  • Calculated from insertion loss data above.
  • Isolation represents the maximum cross-talk between the channels.
  • Other fiber types are available upon request. Please contact Technical Support with inquiries.
Click for Sample Data Sheet

Each RGB combiner is shipped with a detailed test report that includes transmission and isolation measurements as well an insertion loss plot showing the performance of Ports 1, 2, and 3.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
RGB46HB Support Documentation
RGB46HBNEW!RGB Combiner: 488, 532, and 640 nm, No Connectors
$850.00
Today
RGB46HF Support Documentation
RGB46HFNEW!RGB Combiner: 488, 532, and 640 nm, FC/PC Connectors
$890.00
Today
RGB46HA Support Documentation
RGB46HANEW!RGB Combiner: 488, 532, and 640 nm, FC/APC Connectors
$890.00
Today

3-Wavelength Combiner: 488, 561, and 640 nm

RGB50 Combiner Insertion Loss
Click to Enlarge

Click Here for Raw Data
This plot shows the spectral performance of a RGB50 3-wavelength combiner. The lines represent the spectral response of each channel, while the colored regions denote the bandwidth around the center wavelengths. This data is typical; performance of each coupler may vary within the coupler specifications. Data was obtained without connectors.
RGB50 Specifications
Port 1 2 3
Color Blue Green Red
Wavelength 488 nm 561 nm 640 nm
Bandwidtha ±5 nm ±5 nm ±5 nm
Insertion Lossa ≤0.7 dB ≤0.7 dB ≤0.7 dB
Transmissionb ≥85% ≥85% ≥85%
Isolationa,c @ 488 nm N/A ≥15 dB ≥15 dB
@ 561 nm ≥15 dB N/A ≥15 dB
@ 640 nm ≥15 dB ≥15 dB N/A
Polarization-Dependent Lossa ≤0.2 dB
Optical Return Lossa ≥60 dB
Fiber Typed 460HP
Max Power Level 50 mW
  • All values are specified over the bandwidth without connectors.
  • Calculated from insertion loss data above.
  • Isolation represents the maximum cross-talk between the channels.
  • Other fiber types are available upon request. Please contact Technical Support with inquiries.
Click for Sample Data Sheet

Each RGB combiner is shipped with a detailed test report that includes transmission and isolation measurements as well an insertion loss plot showing the performance of Ports 1, 2, and 3.
Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
RGB50HB Support Documentation
RGB50HBNEW!RGB Combiner: 488, 561, and 640 nm, No Connectors
$850.00
Today
RGB50HF Support Documentation
RGB50HFNEW!RGB Combiner: 488, 561, and 640 nm, FC/PC Connectors
$890.00
Today
RGB50HA Support Documentation
RGB50HANEW!RGB Combiner: 488, 561, and 640 nm, FC/APC Connectors
$890.00
Today

Mounting Base

  • Mounting Base for Thorlabs' RGB Wavelength Combiners and 1x4 Single Mode (SM) Couplers
  • Four M2 Taps for Mounting Fiber Optic Component Housing
  • 2.25" (57.2 mm) Long Clearance Slots Accept 1/4"-20 (M6) Screws
  • Four M2 Mounting Screws Included

Our FCQB mounting base provides two 2.25" (57.2 mm) long clearance slots for 1/4" (M6) cap screws for mounting Thorlabs' RGB wavelength combiners or 1x4 couplers to an optical table or other tapped surface. The two clearance slots are located 4" (101.6 mm) apart at opposite edges of the mounting base. Four M2 taps between the clearance slots are positioned to align with the through holes in Thorlabs' RGB wavelength combiners and 1x4 SM couplers. Four M2 screws are included.

Based on your currency / country selection, your order will ship from Newton, New Jersey  
+1 Qty Docs Part Number - Universal/Imperial Price Available / Ships
FCQB Support Documentation
FCQBMounting Base for Thorlabs' RGB Combiners and 1x4 SM Couplers
$35.00
Today
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