1920/2000/2070 nm Polarization Maintaining Faraday Mirror
The Polarization Maintaining Faraday Mirror is a passive device that provides 90 degree rotation regarding the polarization state of the input light. The PMFM offers excellent performance including the lowest possible insertion loss and environmental stability. It is used in amplifiers, fiber lasers and fiber instruments to minimize the polarization effect.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Center Wavelength λc | 1920, 2000, 2070 |
| Operating Wavelength Range [Center wavelengths 1920, 2000, 2070 nm；source prints ±15] | ±15 nm |
| Typ. Insertion Loss [Each connector added: IL 0.3 dB higher.] | 0.6 dB |
| Max. Insertion Loss [Each connector added: IL 0.3 dB higher.] | 0.9 dB |
| Faraday Rotation Angle [Single pass] | 45 degree |
| Max. Rotation Angle Tolerance [λc；23 °C] | ±2 degree |
| Polarization Rotation [Description；with respect to incident/input light] | 90 degree |
| Return Loss Change [For each connector added；source provides no base RL value.] | -5 dB |
| Min. Extinction Ratio [23 °C；Each connector added: ER 2 dB lower；connector key aligned to slow axis.] | 20 dB |
| Fiber Type | PM 1550 Panda Fiber or PM1950 Fiber |
| Max. Optical Power | 300 mW |
| Max. Tensile Load | 5 N |
| Operating Temperature | -5 to +70 °C |
| Storage Temperature | -40 to +85 °C |
Applications
Key Features
Datasheet
Supplier Information
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Polarization-maintaining devices preserve the original polarization state as far as possible, or transform it in a defined way, when joining or coupling polarized light between two polarization-maintaining fibers. Examples include PM connectors, PM collimators, PM multiplexers/demultiplexers, depolarizers/polarizers, polarization-dependent circulators and isolators, and polarization-maintaining optical couplers.
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