ILX Lightwave FOS-79800B: Source Modules
ILX Lightwave Optical Light Sources. Wavelength: specific optical output across the C and L bands., Wavelength: ** Module-dependent, Accuracy: ** ±0.1 dB high-resolution control.
- Model
- ILX Lightwave FOS-79800B
- Calibration
- Available on request
- Price
- $790
- Status
- In stock
- RFQ ref
- FOS-79800B
This unit
The ILX Lightwave FOS-79800B is a precision DFB laser source module for fiber optic testing and WDM system characterization. It operates as a plug-in component within the FOM-7900B Fiber Optic System Mainframe, delivering stable, wavelength-specific optical output across the C and L bands. The module supports independent control via front-panel menu or remote command through RS-232 and GPIB (IEEE-488.2) interfaces, enabling multi-wavelength measurement campaigns and component validation in production and laboratory environments.
Technical Specifications
Emitter Type: DFB laser diode
Wavelength: Module-dependent; ITU grid points available (examples: 1530.3 nm, 1537.4 nm; extended range 1475–1625 nm for FOS-79800F variants)
Output Power: 10.0 dBm typical (FOS-79800B/315B); minimum 10 dBm (FOS-79800D/315X1); minimum 13 dBm (FOS-79800D/315X2); 9–20 mW calibrated (FOS-79800E)
Short-Term Power Stability: ±0.005 dB (rms) at constant ambient within ±0.1°C
Long-Term Power Stability: ±0.003 dB over 15 minutes at constant ambient within ±1°C
Wavelength Stability: ±3 pm / 90 days post-calibration (FOS-79800 series); ±0.003 nm (FOS-79800E); ±25 pm / 90 days or ±50 pm / one year (FOS-79800F)
Linewidth: 30 MHz nominal; tunable to 1 GHz via coherence control for SBS suppression
Attenuation Accuracy: ±0.1 dB high-resolution control
Key Features
Processor-controlled modulation at 100% depth, 50% duty cycle
Synchronous modulation capability spanning 1–500 kHz across all active modules
Mainframe trigger support for synchronized multi-module operation
Wavelength-stabilized output suitable for precision component and system characterization
Typical Applications
WDM component and system testing
Optical fiber characterization
Multi-wavelength performance validation
Wavelength-dependent loss and dispersion measurement
Compatibility & Integration Designed exclusively for the FOM-7900B Fiber Optic System Mainframe. Part of the fourth-generation FOS-79800 series platform. Status: Obsolete. Manufacturer support, calibration, and repair services are no longer available from ILX Lightwave.
Specifications
| Parameter | Value |
|---|---|
| Power Range (dBm) | 10.0 dBm typical (FOS-79800B/315B) |
| 9–20 mW (FOS-79800E) | Wavelength Range | 1475–1625 nm (module-dependent |
| examples | 1530.3 nm, 1537.4 nm) |
ILX Lightwave FOS-79800B — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the ILX Lightwave FOS-79800B. Calibration covers output power at specified wavelengths, wavelength accuracy, 15-minute output stability, and modulation frequency accuracy where applicable. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common ILX Lightwave FOS-79800B faults: laser diode end-of-life (output below spec), fiber output connector damage, output instability. Common repairs include laser diode replacement when output falls below spec, fiber output connector repair, and thermal management service.
ILX Lightwave FOS-79800B price
This ILX Lightwave FOS-79800B is listed at $790. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
ILX Lightwave FOS-79800B calibration cost
NIST-traceable calibration for the ILX Lightwave FOS-79800B is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers output power at specified wavelengths, wavelength accuracy, 15-minute output stability, and modulation frequency accuracy where applicable. Turnaround is 1 to 3 business days after receipt. See full calibration details →
