Description
2000/1700nm 1×2 Filter WDM
2000/1700nm 1×2 Filter WDM is a fiber component built with thin-film filter technology, it can be used to separate or combine 2000nm and 1700nm wavelength signal, it’s widely used in Fiber Laser Systems and Fiber Amplifier Systems, the high power type is available upon request.
| Application: | Features: | ![]() |
| Fiber Laser | Epoxy Free | |
| Fiber Amplifier | High Isolation | |
| Optical Diffraction System | Low Insertion Loss | |
| Lab And Research | Optical Path Reversibility |
Specification:
| Parameter | Symbol | Value |
Unit |
| Type | P2000 R1700 | nm | |
| Pass Band | λ | 2000 (1900-2100) | nm |
| Reflect Band | λ | 1700 (1680-1800) | nm |
| Max. Insertion Loss @Pass Channel | IL | 0.8 | dB |
| Max. Insertion Loss @Reflect Channel (SMF-28e) | IL | 0.6 | dB |
| Min. Isolation @Pass Channel | Iso | 25 | dB |
| Min. Isolation @Reflect Channel | Iso | 15 | dB |
| Max. Insertion Loss Temperature Sensitivity | 0.5 | dB | |
| Max. Polarization Dependent Loss | PDL | 0.2 | dB |
| Min. Directivity | 50 | dB | |
| Min. Return Loss | RL | 50 | dB |
| Max. Optical Power (CW) | 500 or customized | mW | |
| Max. Tensil Load | P | 5 | N |
| Fiber Type | SM 1950 or SMF-28e | – | |
| 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/WWWW-FF-J-LL-CC |
||||
| WWWW/WWWW | FF | J | LL | CC |
| Wavelength | Fiber Type on all Port | Fiber Jacket | Fiber Length | Connector |
| 2000/1700 – 2000nm Pass, 1700nm Reflect | S1 – SM 1950 | B – 250um Bare Fiber | 05 – 0.5m | NE – None |
| 2000/1720 – 2000nm Pass, 1700nm Reflect | S2 – SMF-28e | 9 – 900um Loose Tube | 08 – 0.8m | FA – FC/APC |
| 2000/1750 – 2000nm Pass, 1750nm Reflect | SS – Specify | 2 – 2mm Loose Tube | 10 – 1.0m | FU – FC/UPC |
| 2000/1760 – 2000nm Pass, 1760nm Reflect | 3 – 3mm Loose Tube | 15– 1.5m | SA – SC/APC | |
| 20 – 2.0m | SU – SC/UPC | |||
| LA – LC/APC | ||||
| LU – LC/UPC | ||||
| SS – Specify | ||||
Example: FWDM-2000/1700-S1-9-10-FA is the PN for 2000/1700nm 1×2 Filter WDM, SM 1950 fiber on all port, 1.0m fiber length, FC/APC

