Description
1×2 PM CWDM
1×2 PM CWDM (Coarse Wavelength Division Mulitplexer) is a fiber component built with thin-film filter technology, it can be used to separate or combine CWDM wavelength signal with PM Panda fiber, it’s widely used in CWDM System, Fiber Laser Systems and Fiber Optic Sensor, the high power type is available upon request.
| Application: | Features: | ![]() |
| CWDM System | Epoxy Free | |
| Fiber Laser | High Isolation | |
| Fiber Optic Sensor | Low Insertion Loss | |
| Lab And Research | Optical Path Reversibility |
Specification:
| Parameter | Symbol | Value | Unit |
| Center Wavelength | λ | 1260-1620 | nm |
| Channel Spacing | 20 | nm | |
| Pass Band | ±6.5 | nm | |
| Max. Insertion Loss @Pass Channel | IL | 0.6 | dB |
| Max. Insertion Loss @Reflect Channel | IL | 0.4 | dB |
| Min. Isolation @Pass Channel | Iso | 30 | dB |
| Min. Isolation @Reflect Channel | Iso | 15 | dB |
| Max. Channel Flatness | 0.3 | dB | |
| Min. Extinction Ratio | ER | 20 | dB |
| Min. Directivity | 50 | dB | |
| Min. Return Loss | RL | 50 | dB |
| Max. Optical Power (CW) | P | 500 | mW |
| Max. Tensil Load | 5 | N | |
| Fiber Type | PM Panda Fiber | – | |
| 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, ER will be 2dB lower, slow axis is default aligned to the connector key. |
Drawing:

Ordering Information (Part Number):
| PCWDM-WWWW-A-J-LL-CC |
||||
| WWWW | A | J | LL | CC |
| Wavelength | Working Axis | Fiber Jacket | Fiber Length | Connector |
| 1270 – 1270nm | F – Fast Axis Blocked | B – 250um Bare Fiber | 05 – 0.5m | NE – None |
| 1290 – 1290nm | Slow Axis Working | 9 – 900um Loose Tube | 08 – 0.8m | FA – FC/APC |
| . | B – Both Axes Working | 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 | ||
| 1590 – 1590nm | LA – LC/APC | |||
| 1610 – 1610nm | LU – LC/UPC | |||
| SS – Specify | ||||
Example: PCWDM-1310-B-9-10-FA is the PN for 1310nm 1×2 PM CWDM, Both Axes Working, 1.0m fiber length, FC/APC, 5.5*35mm Package
