The Thorlabs S1FC1550 is a Fabry-Perot benchtop laser source delivering stable continuous-wave optical signals at 1550 nm for telecommunications, fiber optic testing, and near-infrared experimental applications. The unit provides 1.5 mW minimum output power with power adjustment from approximately 0 mW to full output, coupled to standard single-mode fiber via an FC/PC connector. Front-panel controls enable intuitive power management and real-time output monitoring through a digital display.
Technical Specifications
• Wavelength: 1550 nm typical; 1530–1570 nm operating range
• Output Power: 1.5 mW minimum full output; adjustable 0 mW to full power
• Optical Fiber: SMF-28-J9 single-mode fiber, 10.4 μm ±500 nm mode field diameter, 0.14 numerical aperture
• Power Stability: ±0.05 dB over 15 minutes; ±0.1 dB over 24 hours (after 1 hour warm-up at 25 °C ±10 °C)
• Operation Mode: Continuous wave (CW)
• Laser Class: Class 1
• Warm-up Time: 5 minutes minimum to stabilization
• Modulation Input: 0–5 V analog, 50 Ω impedance, 0–30 kHz bandwidth (sinewave only). Full depth of modulation supported to 5 kHz; small-signal modulation to 30 kHz. TTL and squarewave inputs not permitted.
– Key Features
• Fiber-coupled output with standard FC/PC connector for direct system integration
• Dual AC input selectable between 115 VAC (250 mA max) and 230 VAC (160 mA max), 50–60 Hz
• Safety interlock input via 2.5 mm mono jack (normally open dry contacts only)
• Analog modulation capability via BNC connector
• Compact benchtop form factor, 3.23 kg
– Operating Environment
• Operating Temperature: 15–35 °C
• Storage Temperature: 0–50 °C
– Typical Applications
• Telecommunications system testing and validation
• Fiber optic component characterization
• Near-infrared signal generation for laboratory and field experiments
• Optical power measurement and system calibration
