Production Description
We provides full range of filter wavelength division multiplexers based on Thin Film Coating Technology. The device combines or separated light at different wavelenghts in a wide wavelength range. it widely used in EDFA,Raman amplifiers, and WDM networks.
Typical Advantage
1. Wide Operating wavelength Range
2. Low Insertion Loss
3. Ultra Flat Wide Passband
4. High Channel Isolation
5. High Stability and Reliability
6. Expoy-free on Optical Path
Typical Usage
1. EDFA
2. Raman Amplifier
3. WDM Networks
Package Type
Steel Tube Package for 250um bare fiber and 900um fiber
ABS for 900um,2.0mm,3.0mm
Performance Parameters
Parameter | FWDM4/35 | FWDM5/34 | FWDM 34/5 |
Pass Band Wavelength Range(nm) | 1480~1500 | 1540~1560 | 1260~1360&1480~1500 |
Reflection Band 1 Wavelength Range(nm) | 1260~1360 | 1260~1360 | 1540~1560 |
Reflection Band 2 Wavelength Range(nm) | 1540~1560 | 1480~1500 |
Insertion Loss(dB) | Reflect Channel | ≤0.6 |
Pass Channel | ≤0.8 |
Pass Band Rippler(dB) | <0.3 |
Isolation(dB) | RefLect Channel | >15 |
Pass Channel | >30 |
Insertion Loss Temperature Sensitivity (dB/℃) | <0.005 |
Polarization Dependent Loss (dB) | <0.1 |
Polarization Mode Dispersion (ps) | <0.1 |
Directivity (dB) | >50 |
Return loss (dB) | >50 |
Maximum Power Handling (mW) | 300 |
Operating Temperature (℃) | -10~+75 |
Storage Temperature (℃) | -40~+85 |
Remark: The abovementioned devices without connectors




