ILX Lightwave FOS-79880 – ECL Source Module

The ILX Lightwave FOS-79880 is an External Cavity Laser (ECL) source module delivering a stable, manually tunable light source for optical applications. Designed for integration into the 7900B System Mainframe (sold separately), this module provides continuous wavelength tuning across the C-band via front-panel knob adjustment and fixed output power of 2.0 dBm. ## Technical Specifications • Wavelength Tuning Range: 1530 nm to 1580 nm • Output Power: 2.0 dBm • Wavelength Adjustment: Manual front-panel knob • Architecture: External Cavity Laser (ECL) ## Key Features • Continuous tuning across 50 nm range in the C-band telecommunications window • Manual wavelength control via dedicated front-panel adjustment knob • Stable optical output at 2.0 dBm nominal power level • Modular design compatible with ILX Lightwave 7900B mainframe architecture ## Typical Applications • Optical network characterization and testing • Wavelength-dependent measurement in fiber-optic systems • Laboratory spectroscopy and wavelength-selective experiments • C-band optical source requirements in test configurations ## Compatibility & Integration The FOS-79880 is a source module requiring the ILX Lightwave 7900B System Mainframe for operation. The mainframe provides power distribution, mechanical mounting, and system integration infrastructure. Product Status: This module is classified as Obsolete by the manufacturer. Production has ceased and ILX Lightwave no longer provides technical support, repair services, calibrations, or documentation updates. Existing units remain functional when properly integrated with compatible mainframes, but spare parts and service resources are unavailable.