The ILX Lightwave FOS-79800D (Model 79800D/315 Series) represents a high-performance family of WDM DFB fiber optic source modules designed for demanding WDM system and component testing. Operating within the ILX Lightwave 7900B modular optical test system mainframe, these modules offer high output power, precise wavelength tuning, coherence control, and high stability across C-band and L-band wavelengths.
Specifications
General
| Parameter | Value |
|---|---|
| Interfaces | GPIB (facilitated via 7900B mainframe) |
| Display | Mainframe-controlled (via 7900B front panel) |
| Fiber Type | 9/125 Ιm single mode |
Physical
| Parameter | Value |
|---|---|
| Power Supply | Supplied by FOM-7900B mainframe |
| Operating Temperature | 0 to 40 °C |
Optical Performance
| Parameter | Value |
|---|---|
| Wavelength Range (315C1 / 315C2) | 1528 to 1563 nm (C-band) |
| Wavelength Range (315L1 / 315L2) | 1563 to 1610 nm (L-band) |
| Minimum Output Power (315C1 / 315L1) | ≥10 dBm |
| Minimum Output Power (315C2 / 315L2) | ≥13 dBm |
| Wavelength Tuning Range | ±0.85 nm |
| Spectral Width (Coherence Control ON) | 1 GHz (typical) |
| Side Mode Suppression Ratio (SMSR) | >40 dB (>45 dB typical) |
| Optical Isolation | >30 dB |
| Optical Connector Type | FC/APC |
Attenuation & Control
| Parameter | Value |
|---|---|
| Calibrated Attenuation Range | 10 dB |
| Full Attenuation Range | 15 dB (typical) |
Shutter Specifications
| Parameter | Value |
|---|---|
| Optional Shutter Transition Time (Off to On) | 30 ms |
| Optional Shutter Transition Time (On to Off) | 10 ms |
| Optional Shutter Lifetime | >10 million cycles |
System Integration
| Parameter | Value |
|---|---|
| Compatible Mainframe | ILX Lightwave 7900B Fiber Optic System Mainframe |
Wavelength
| Parameter | Value |
|---|---|
| Wavelength Tuning Resolution | 1 pm (0.001 nm) |
Stability
| Parameter | Value |
|---|---|
| Wavelength Stability (1 hour) | <±0.002 nm |
| Wavelength Stability (24 hours) | <±0.005 nm |
| Power Stability (1 hour) | <±0.005 dB |
| Power Stability (24 hours) | <±0.03 dB |
Power & Attenuation
| Parameter | Value |
|---|---|
| Attenuation Resolution | 0.01 dB |
Environmental
| Parameter | Value |
|---|---|
| Storage Temperature | -40 to 70 °C |
| Maximum Operating Humidity | 85% R.H. (non-condensing) |
Performance
| Parameter | Value |
|---|---|
| Warm-up Time | 1 hour (to meet specifications) |
Technology
Distributed Feedback (DFB) Laser
Applications
WDM System and Component Testing