Polarization-maintaining CWDM
Introduce
Polarization-maintaining CWDM use collimating lenses to couple light of different wavelengths into a dichroic mirror, and then refocus it into a single output fiber. This technology does not impose additional requirements on the input and output polarization-maintaining fibers, thus allowing users more flexibility in wavelength selection.
Features
- High isolation
- ITU standard
- High stability and reliability
- Telcordia standard testing
Application
- Fiber optic amplifier
- Optical add-drop multiplexing system
- Laboratory research
Specification
| Parameter | unit | Parameter value |
| Center wavelength | nm | 1270~1610nm or 1271~1611nm |
| Wavelength interval | nm | 20 |
| Bandwidth range | nm | ±6.5 or ±7.5 |
| Transmission insertion loss | dB | ≤0.6 |
| Reflection insertion loss | dB | ≤0.4 |
| Broadband flatness | dB | ≤0.3 |
| Adjacent channel isolation | dB | ≥30 |
| Isolation between non-adjacent channels | dB | ≥40 |
| Extinction ratio | dB | ≤20 |
| Wavelength shift | dB | ≤0.002 |
| Polarization mode dispersion | dB | ≤0.1 |
| Directionality | dB | ≤50 |
| Return loss | dB | ≤45 |
| Power handling capacity | mW | 500 or customized |
| Fiber type | PM Panda Fiber | |
| Operating temperature | ℃ | -5 to +50 |
| Storage stable | ℃ | -20 to +85 |
| Dimensions | mm | Φ5.5xL35 |
Order Information
| wavelength | Casing type | Fiber length | connector |
| 1270=1270nm
1271=1271nm ····· 1610=1610nm 1611=1611nm |
B=250um bare fiber
L=900um loose tube |
05=0.5m
08=0.8m 10=1.0m 15=1.5m XX=Specify |
NE=None
FA=FC/APC FP=FC/PC SA=SC/APC SP=SC/PC LA=LC/APC LP=LC/PC XX=Specify |