CWDM
Product Description
CWDM：Coarse Wavelength Division Multiplexer is a metropolitan area network backbone layer or a long wavelength division transmission technology. It transmits signal by making different ITU-T CWDM wavelength signals multiplex to single fiber in receiving terminal. It decomposes composite signal into different ITU-T CWDM wavelength signal.
Product Applications
- CWDM system
Product Features
- Single card maximum can support 8-channel MUX and 8-channel DEMUX
- Low insertion loss
- Low polarization dependent loss
- High channel isolation
- Good environment reliability
- High level of integrationby plug-in design
Performance Index
| Parameters | Unit | Specifications | |||
| Wavelength Range | ITU channels 186.6 to196.1 THz | ||||
| Channel Center Wavelength | nm | ITU channels | |||
| Channel Spacing | nm | 20 | |||
| Channel Pass band (@-0.5dB) | nm | λ±7.5 | |||
| Channel No. | λ | 2 | 4 | 8 | 16 |
| Insertion Loss | dB | ≤ 0.8 | ≤ 1.5 | ≤ 2.5 | ≤5.2 |
| Adjacent Channel Isolation | dB | ≥ 30 | |||
| Non-adjacent Channel Isolation | dB | ≥ 40 | |||
| Wavelength thermal stability | nm/℃ | ≤ 0.003 | |||
| Insertion loss thermal stability | dB/℃ | ≤ 0.005 | |||
| PDL | dB | ≤ 0.1 | ≤ 0.15 | ≤ 0.15 | ≤ 0.20 |
| Polarization mode dispersion | ps | ≤ 0.1 | |||
| Directivity | dB | ≥ 50 | |||
| Return loss | dB | ≥ 45 | |||
| Optical Power | mW | ≤ 500 | |||
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