• Single Mode Fiber, FC/PC Interface
• Low Noise, Highly Stable Output
• 1550 nm Center Wavelength
• TEC Temperature Stabilization
• 40 dB Optical Isolation

The S3FC1550 Fiber Coupled Laser Source features a narrow linewidth 1550 nm DFB laser diode and a 40 dB optical isolator to eliminate back reflections and frequency jitter. This laser source incorporates an integrated temperature control system for increased wavelength and power stability. The diode temperature and output power can be adjusted using the two front panel adjustment knobs, which ensures that the DFB laser diode can be tuned to match the laser cavity (see the Tuning tab). Also found on the front panel is a display that selectably shows either the output power in mW or the temperature in °C, an on / off key, an enable button, and the FC/PC bulkhead connector (wide 2.1 mm key compatible). The back panel includes an input that allows the laser diode drive current to be controlled via an external voltage source and a remote interlock input.

• Wavelength: 1550 nm
• Min. Output Power: 1.5 mW
• Stability: 15 min: ±0.05 dB, 24 hr: ±0.1 dB (After 1 hr Warm-up at 25 ± 10 °C Ambient)
• Display Accuracy: ±10%
• Setpoint Resolution: 0.01 mW
• Adjustment Range: ~0 mW to Full Power
• Modulation Input: 0 - 5 V = 0 - Full Power, DC or Sine wave Input Only
• Modulation Bandwidth: 5 kHz Full Depth of Modulation, 30 kHz Small Signal Modulation
• Fiber: SMF-28e+

• Stability: 0.005 °C/1 °C
• Setpoint Accuracy: ±0.25 °C
• Setpoint Resolution: ±0.1 °C
• Adjustment Range: 20 ± 1 °C to 30 ± 1 °C