The 1950nm Faraday Mirror is a passive device that provides 45- or 90-degree rotation regarding to the polarization state of the input light. It is a fiber optic polarization rotation mirror designed for fiber optic networks and measurement applications. The device can help to eliminate polarization sensitivity of an optical fiber system.
The Faraday Mirror is a passive device that provides 45- or 90-degree rotation regarding to the polarization state of the input light. It is a fiber optic polarization rotation mirror designed for fiber optic networks and measurement applications. The device can help to eliminate polarization sensitivity of an optical fiber system. Applications include eliminating polarization induced fluctuations in fiber interferometers, Brillouin amplifier systems, fiber laser systems, and fiber optic antenna remoting systems. Our Faraday Mirror is optical path epoxy free and thus offers low insertion loss and high temperature stability.
| Parameter | Unit | Values |
| Center Wavelength | nm | 1950 |
| Operating Bandwidth | nm | ±30 |
| Max. Insertion Loss | dB | 0.9(Typ. 0.6.) |
| Faraday Rotation Angle (Single Pass) | degree | 45 |
| Rotation Angle Tolerance over Wavelength and Temperature | degree | +/-2.0 |
| Max. PDL | dB | 0.10 |
| Max. Optical Power | mW | 500 |
| Fiber Type | – | SMF-28e(default) or SM1950 |
| Operation Temperature | °C | -5 ~ +70 |
| Storage Temperature | °C | -40 ~ +85 |
| Dimensions | mm | Ø5.5xL35 |
Faraday Rotation Angle (Single Pass) Illustration:
P/N: FM-①-②-③-④-⑤-⑥-⑦
When you inquire, please provide the correct P/N number according to our ordering information and attach the appropriate description would be better. If need any connector, we do not recommend choosing a 250μm bare fiber pigtail.
| ① | ② | ③ | ⑤ | ⑥ | ⑦ | ⑧ |
| Wavelength | Faraday Rotation Angle | Dimensions | Fiber Type | Pigtails Diameter | Fiber Length | Connector |
| 1950:1950nm
2000:2000nm 2050:2050nm XX: Others |
45:45° | 1: Ø5.5mmxL35mm | S28: SMF-28e
S19: SM1950 |
25:250μm bare fiber
90:900μm Loose Fiber XX: Others |
05:0.5m
10:1.0m 15:1.5m XX: Others |
00: None
FP: FC/PC FA: FC/APC XX: Others |
Part Number Example: FM-1950-45-1-S28-90-10-00
Description: 1950nm Faraday Mirror, Faraday rotation angle: 45°, Ø5.5xL35mm package, SMF-28e fiber with 0.9mm OD loose tube, 1.0m length fiber pigtails, and no connectors at all ports.
Ordering Information for Custom Parts
If you need to customize other specifications, please provide detailed description for your requirement.
DownloadDatasheet in PDF