635/780nm Polarization Maintaining Fused WDM
P/N: FIR-635-780-PM-FUW|SKU: 10376
Unit Price
MOQ: 1 pcs
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635/780nm Polarization Maintaining Fused WDM
The 635/780nm Polarization Maintaining Fused WDM is a compact passive wavelength division multiplexer designed for combining or separating 635nm and 780nm optical signals in polarization-maintaining fiber systems. Utilizing fused biconical taper (FBT) technology, this PM WDM offers low insertion loss, high isolation, and stable polarization performance for visible and near-infrared laser applications.
Constructed with PM630 polarization-maintaining fiber, the device preserves the polarization state of transmitted light while ensuring low back reflection and reliable optical stability. Its compact package and robust structure make it suitable for integration into precision photonics equipment and OEM optical systems.
The 635/780nm PM Fused WDM is widely used in spectroscopy, biomedical instrumentation, laser systems, fiber optic sensing, quantum optics, and scientific research applications requiring efficient wavelength multiplexing with stable polarization control.
Specifications
Parameter | Unit | Value |
|---|---|---|
Center Wavelength | nm | 635/780 |
Operating Wavelength Range | nm | ±5 |
Isolation (Min.) | dB | 18 |
Insertion Loss (Max.) | dB | 1.0 |
Return Loss (Min.) | dB | 55 |
Extinction Ratio (Min.) | dB | 18 |
Max Optical Power (CW) | W | 0.5 |
Fiber Type | - | PM630 |
Working Axis | - | Both Axis |
Tensile Load | N | 5 |
Package Dimensions | mm | Φ3 x L60 (Bare Fiber)/Φ3 x L70 (Loose Tube) |
Operating Temperature | °C | -40 to +85 |
Storage Temperature | °C | -40 to +85 |
Notes: Tested at 25 °C. Data exclude connectors. Adding connectors will increase insertion loss by approximately 1.0 dB, reduce return loss by 5 dB, and decrease extinction ratio by 2 dB. The fiber slow axis is aligned to the key by default.
Dimensions
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