Description
1750/1550nm 1×2 Filter WDM
1750/1550nm 1×2 Filter WDM is a fiber component built with thin-film filter technology, it can be used to separate or combine 1750nm and 1550nm 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 | P1750 R1550 | nm | |
| Pass Band | λ | 1750 (1680-1800) | nm |
| Reflect Band | λ | 1550 (1500-1600) | nm |
| Max. Insertion Loss @Pass Channel | IL | 0.9 | dB |
| Max. Insertion Loss @Reflect Channel (SMF-28e) | IL | 0.9 | 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 | 0.15 | 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 |
| 1750/1550 – 1750nm Pass, 1550nm Reflect | S1 – SM 1950 | B – 250um Bare Fiber | 05 – 0.5m | NE – None |
| 1750/1560 – 1750nm Pass, 1560nm Reflect | S2 – SMF-28e | 9 – 900um Loose Tube | 08 – 0.8m | FA – FC/APC |
| 1750/1570 – 1750nm Pass, 1570nm Reflect | SS – Specify | 2 – 2mm Loose Tube | 10 – 1.0m | FU – FC/UPC |
| 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-1750/1550-S2-9-10-FA is the PN for 1750/1550nm 1×2 Filter WDM, SMF-28e on all port, 1.0m fiber length, FC/APC
