Model Number: Polarization Maintaining Filter WDM
Parameter(nm): 1064nm/980nm
Pass Insertion Loss (dB): ≤0.8
Reflection Insertion Loss (dB): ≤0.6
Pass channel Isolation (dB): ≥25
Reflection Isolation (dB): ≥12
Channel Flatness (dB): ≤0.3
Extinction Ratio (dB): ≥20
Return Loss (dB): ≥50
Dimensions (mm): 5.5 x L38(P1) (only for bare fiber or 900um loose tube)
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980/1064nm Polarization Maintaining Filter WDM is a polarization maintaining fiber components, based on interference filter technology, are designed for 980nm and 1064nm wavelengths. They combine or split light at these two wavelengths while maintaining a high degree of polarization. The output light exhibits a high extinction ratio and maintains polarization orientation.
All input and output fibers are polarization-maintaining. They utilize advanced filtering technology to achieve broadband, low insertion loss, a high polarization extinction ratio, and high return loss in a compact package. They are ideal for applications such as polarization-maintaining fiber amplifiers, fiber lasers, and instrumentation.

Feature:
* Low Insertion Loss
* High Isolation
* High Extinction Ratio
* High power handling
* High Stability and Reliability
Application:
* Fiber laser
* Fiber amplifier
* Fiber Sensor
* Monitoring in Coherent Systems
* Communications
Type Parameter | 1064/980 | |
Pass wavelength (nm) | 1020~1080 | |
Reflection wavelength (nm) | 960~990 | |
Pass Insertion Loss (dB) | ≤0.8 | |
Reflection Insertion Loss (dB) | ≤0.6 | |
Pass channel Isolation (dB) | ≥25 | |
Reflection Isolation (dB) | ≥12 | |
Channel Flatness (dB) | ≤0.3 | |
Extinction Ratio (dB) | ≥20 | |
Return Loss (dB) | ≥50 | |
Insertion loss thermal stability (dB/℃) | ≤0.005 | |
Power handling CW (mW) | ≤500 | |
Fiber Type | Comm & Pass port | PM 980 |
Reflection Port | HI 1060 or PM 980 | |
Operating temperature (℃) | 0 ~ +65 | |
Storage temperature (℃) | -40 ~ +85 | |
Dimensions (mm) | φ5.5 × L38(P1) (only for bare fiber or 900um loose tube) | |
* Above specifications are for devices without the connectors.
* For devices with connectors, IL will be 0.3dB higher, RL will be 5dB lower, and ER will be 2dB lower.
* The PM fiber and the connector key are aligned to the slow axis. 【Both axis work】or【Fast axis blocked(com-pass ,com- ref ) 】
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