1260nm - 1620nm Polarization Maintaining Coarse WDM with Low Insertion Loss and High Isolation for CWDM/OADM Networks
The Polarization Maintaining Coarse Wavelength Division Multiplexer Filter is designed and manufactured to international standards. These devices utilize environmentally stable thin film filters and advanced packaging technology to achieve wide passband, low insertion loss, high channel isolation, and excellent environmental stability.
They can be used individually to perform single channel add or drop functions, or cascaded in sequence for multi-channel applications in CWDM systems. They are also employed to block unwanted noise signals in EDFAs and fiber laser systems.
The components are characterized by high isolation, low insertion loss, high extinction ratio, excellent environmental stability, and high power handling capability.
- CWDM System
- CWDM/OADM Module
- CWDM/OADM Networks
- Low Insertion Loss & Isolation
- High Return Loss
- High Reliability & Stability
- Wide Transmission Width
| Parameters | Unit | Values | |
|---|---|---|---|
| Center Wavelength | nm | ITU or ITU+1 | |
| Operating Wavelength | nm | 1260~1460 or 1460~1620 or 1260~1620 | |
| Channel Space | nm | 20 | |
| Min. Channel Bandwidth @λc | nm | ±6.5 | |
| Max. Channel Flatness | nm | 0.4 | |
| Max. Insertion Loss at 23℃ | Transmission Channel | dB | 0.6 |
| Reflection Channel | dB | 0.4 (1260~1460 or 1460~1620) or 0.6 (1260~1620) | |
| Min. Isolation at 23℃ | Adjacent Channel | dB | 30 |
| Non-adjacent Channel | dB | 40 | |
| Reflection Channel | dB | 12 | |
| Min. Return Loss | dB | 50 | |
| Min. Extinction Ratio at 23℃ | dB | 20 | |
| Max. Wavelength Thermal Stability | nm/℃ | 0.003 | |
| Max. Insertion Loss Thermal Stability | dB/℃ | 0.005 | |
| Max. Power Handling (CW) | mW | 500 | |
| Operating Temperature | ℃ | 0~+70 | |
| Storage Temperature | ℃ | -40~+85 |
With connector, IL is 0.3dB higher, RL is 5dB lower, and ER is 2dB lower.
Connector key is aligned to slow axis.
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