Project Description
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.
| Features | Applications |
| · High Isolation
· Low Insertion Loss · High Return loss · Compact Size · Epoxy Free Optical Path |
· Fiber Optical Amplifier
· Fiber Optical Laser · Fiber optic Systems Testing · Telecommunications |
Performance Specifications
| Parameter | Unit | Values |
| Center Wavelength | nm | 1550 |
| Operating Bandwidth | nm | +/-15 |
| Max. Insertion Loss | dB | 0.6(45deg.), 0.7(90deg.) |
| Faraday Rotation Angle (Single Pass) | degree | 45 or 90 |
| Rotation Angle Tolerance over Wavelength and Temperature | degree | +/-1.0 |
| Max. PDL | dB | 0.05 |
| Max. Optical Power | mW | 500 |
| Fiber Type | – | SMF-28 |
| Operation Temperature | °C | -5 ~ +70 |
| Storage Temperature | °C | -40 ~ +85 |
| Dimensions | mm | Ø5.5mmxL35mm, Ø3.0mmxL12mm (only for 1550nm) |
1.Above specification are for device without connector, and may change without notice.
2.IL is 0.3 dB higher and RL is 5 dB lower for connectors added.
Package Dimension
*Due to ongoing design improvements, the package size is subject to change. Please contact DK Photonics for confirmation.
Order information P/N: FM-①-②-③-④-⑤-⑥
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 | ④ | ⑤ | ⑥ |
| Wavelength | Faraday Rotation Angle | Dimensions | Pigtails Diameter | Fiber Length | Connector |
| 15:1550nm | 45:45°
90:90° |
1:Ø5.5mmxL35mm
2:Ø3.0mmxL12mm |
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 SA: SC/APC LA: LC/APC XX: Others |
Part Number Example: FM-15-45-1-90-10-FA
Description: 1550nm Faraday Mirror, faraday rotation angle: 45°, Ø5.5xL35mm package, with 0.9mm OD loose tube,1.0m length fiber pigtails, FC/APC connectors at all ports.
Ordering Information for Custom Parts
If you need to customize other specifications, please provide detailed description for your requirement.
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