The ILX Lightwave FOS-79800D is a precision fiber optic source module engineered for WDM system and component testing in telecommunications and research environments. It delivers spectrally pure, stable optical signals across the C- and L-bands with exceptional wavelength accuracy and power repeatability. The module integrates into the FOM-7900B mainframe platform, supporting remote control via GPIB/IEEE-488 and RS-232 interfaces for automated test sequences and multi-channel configurations.
Technical Specifications
• Wavelength Range: 1528 nm to 1610 nm (C-band: 1528–1564 nm; L-band: 1564–1610 nm), tunable across ±0.85 nm with ±0.05 nm accuracy
• Output Power: 13.0 dBm rated (315X2 series minimum 13 dBm; 315X1 series minimum 10 dBm)
• Wavelength Stability: ±3 pm
• Power Stability: ±0.003 dB short-term (±0.1°C ambient); ±0.05 dB long-term (±1°C ambient) after 1-hour warm-up
• Spectral Width: 40 dB typical; >45 dB max
• Signal-to-Noise Ratio: >30 dB
• Optical Isolation: >30 dB
• Relative Intensity Noise (RIN): -145 dB/Hz
• Power Repeatability: ±0.01 dB
• Optical Interface: Standard FC/APC
– Key Features
• Internal synchronous modulation to 500 kHz with 100% depth and 50% duty cycle
• Rear panel TTL trigger input for external modulation control
• Transition times: 30 ms (OFF to ON), 10 ms (ON to OFF)
• Switch lifetime exceeding 10 million cycles
• ITU grid-aligned or custom wavelength configuration
• Mainframe trigger capability for multi-module synchronization
– Typical Applications
• WDM system characterization and validation
• Component spectral testing and wavelength calibration
• Optical network performance monitoring
• Long-haul telecommunications system development
– Compatibility & Integration
Designed for the ILX Lightwave FOM-7900B Fiber Optic System Mainframe. Up to 24 additional mainframes can be linked and controlled from a single GPIB address, enabling high-channel-density test configurations. Annual factory calibration recommended.
