Description
1550/980nm 1×2 Filter WDM
1550/980nm 1×2 Filter WDM is a fiber component built with thin-film filter technology, it can be used to separate or combine 1550nm and 980nm wavelength signal, it’s widely used in Fiber Laser Systems and EDFA Systems, the high power type is available upon request.
| Application: | Features: | ![]() |
| Fiber Laser | Epoxy Free | |
| EDFA System | High Isolation | |
| Optical Diffraction System | Low Insertion Loss | |
| Lab And Research | Optical Path Reversibility |
Specification:
| Parameter | Symbol | Value |
Unit |
| Type | P1550 R980 | nm | |
| Pass Band | λ | 1550 (1510-1600) | GHz |
| Reflect Band | λ | 980 (965-1000) | nm |
| Max. Insertion Loss @Pass Channel | IL | 0.9 | dB |
| Max. Insertion Loss @Reflect Channel | IL | 0.7 | dB |
| Min. Isolation @Pass Channel | Iso | 30 | dB |
| Min. Isolation @Reflect Channel | Iso | 15 | dB |
| Max. Insertion Loss Temperature Sensitivity | 0.5 | dB | |
| Max. Polarization Dependent Loss | PDL | 0.1 | dB |
| Min. Directivity | 50 | dB | |
| Min. Return Loss | RL | 50 | dB |
| Max. Optical Power (CW) | 500 | mW | |
| Max. Tensil Load | P | 5 | N |
| Fiber Type | SMF-28e on Com & Pass Port HI 1060 or SMF-28e on Reflect Port |
– | |
| Operating Temperature | T | -5~75 | ℃ |
| Storage Temperature | T | -40~85 | ℃ |
| Package Dimension | Φ5.5×L35 | mm |
| Notice: Above specifications are tested at center wavelength without connector in room temperature @23℃. |
| For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower. |
Drawing:

Ordering Information (Part Number):
| FWDM-WWWW/WWW-FF-J-LL-CC |
||||
| WWWW/WWW | FF | J | LL | CC |
| Wavelength | Fiber Type On Reflect Port | Fiber Jacket | Fiber Length | Connector |
| 1530/980 – 1530nm Pass, 980nm Reflect | H1 – HI 1060 | B – 250um Bare Fiber | 05 – 0.5m | NE – None |
| 1550/980 – 1550nm Pass, 980nm Reflect | S2 – SMF-28e | 9 – 900um Loose Tube | 08 – 0.8m | FA – FC/APC |
| 1560/980 – 1560nm Pass, 980nm Reflect | SS – Specify | 2 – 2mm Loose Tube | 10 – 1.0m | FU – FC/UPC |
| 1570/980 – 1570nm Pass, 980nm Reflect | 3 – 3mm Loose Tube | 15– 1.5m | SA – SC/APC | |
| 1580/980 – 1580nm Pass, 980nm Reflect | 20 – 2.0m | SU – SC/UPC | ||
| LA – LC/APC | ||||
| LU – LC/UPC | ||||
| SS – Specify | ||||
Example: FWDM-1550/980-H1-9-10-FA is the PN for 1550/980nm 1×2 Filter WDM, SMF-28e on Com and Pass port, HI 1060 on Reflect port, 1.0m fiber length, FC/APC

