The CWDM OADM 2/4/8ch is a compact passive device that selectively adds or drops 2, 4, or 8 CWDM wavelengths (1270–1610nm) from a fiber link, allowing other channels to pass through uninterrupted. Built with reliable thin-film filter technology, it offers low insertion loss and high channel isolation. Ideal for metro and access networks, it enables flexible, cost-effective fiber expansion and easy network reconfiguration without disrupting existing traffic.
| Item | Parameters | Unit | Specification | ||||
|---|---|---|---|---|---|---|---|
| 1 | Operating Wavelength | nm | 1260~1620 | ||||
| 2 | Central Wavelength | nm | 1271,1291,1311, ... 1611 | ||||
| 3 | Channel Spacing | nm | 20 | ||||
| 4 | Pass Bandwidth | nm | ±6.5 | ||||
| 5 | Number of Channels | - | 4 | 8 | 16 | ||
| 6 | Insertion Loss | Add to Out / In to Drop | Max. | dB | 1.2 | 2.0 | 3.0 |
| In to Out | Max. | dB | 1.2 | 1.2 | 1.2 | ||
| 7 | Polarization Dependent Loss | Max. | dB | 0.15 | 0.15 | 0.2 | |
| 8 | Pass band Ripple | Max. | dB | 0.5 | |||
| 9 | Adjacent Channel Isolation | Min. | dB | 30 | |||
| 10 | Non-adjacent Channel Isolation | Min. | dB | 40 | |||
| 11 | Return Loss | Min. | dB | 45 | |||
| 12 | Directivity | Min. | dB | 50 | |||
| 13 | Power Handing | Min. | mW | 500 | |||
| 14 | Operating Temperature | ℃ | -40 ~ +85 | ||||
| 15 | Storage Temperature | ℃ | -40 ~ +85 | ||||
| 16 | Fiber Type | - | Corning SMF-28 Ultra | ||||
| 17 | Fiber Jacket | - | 900μm Loose tube or Customized | ||||
| 18 | Fiber Length | - | Customized | ||||
| 19 | Connector Type | - | Customized | ||||
| 20 | Package Size | mm | Cassette / LGX / Rack or Customized | ||||
