The ILX Lightwave FOS-79800F 315C2 is a WDM DFB fiber optic source module engineered for wavelength division multiplexing applications requiring precise, stable light generation across the C-band. This plug-in module delivers 10–20 mW of output power with exceptional wavelength and power stability, making it ideal for characterizing WDM systems, EDFAs, SOAs, and fiber optic components. The module integrates dual-stage temperature control and low-noise laser current control to ensure reliable performance in demanding test environments.
## Technical Specifications
• **Wavelength Range:** 1527.98–1564.26 nm (user-specified within C-band)
• **Output Power:** 10–20 mW (minimum 13 dBm)
• **Wavelength Stability:** ±3 pm (typical); ±25 pm over 90 days post-calibration; ±50 pm over one year
• **Power Stability:** ±0.003 dB typical (15 minutes); ±0.005 dB rms (15 minutes); ±0.03 dB (24 hours)
• **Attenuation:** 10 dB calibrated range; 15 dB typical full range; ±0.1 dB accuracy
• **Modulation:** Internal synchronous modulation to 500 kHz; 100% depth, 50% duty cycle; TTL-level outputs (normal and inverted)
• **Coherence Control:** Linewidth broadening from 30 MHz to 1 GHz
• **Optical Interface:** FC/APC
## Key Features
• Picometer resolution for precise wavelength tuning
• High output power (up to 20 mW) with ±0.1 dB attenuation accuracy
• Processor-controlled modulation supporting synchronized multi-module operation
• Coherence control reduces reflection-induced instabilities in single-mode fiber
• Gain flatness testing capability through high-resolution attenuation
## Typical Applications
• WDM system characterization and component testing
• EDFA and SOA gain measurements
• Fiber optic component evaluation
• Channel equalization and gain flatness analysis
## Compatibility & Integration
Designed for the ILX Lightwave FOM-7900B Fiber Optic System Mainframe. Full control via front-panel menu or GPIB/IEEE-488 and RS-232 remote interfaces. Multiple mainframes can be linked for expanded test configurations.
