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Optical beams traveling in a singlemode fiber experience random birefringence, which could make it difficult or impossible
for fiberoptic Michelson interferometer to function properly. Faraday rotator mirrors take the output beam from a
singlemode fiber and rotate the polarization by 90 degrees before sending it back through the same fiber.
By doing so, a Faraday mirror functions as a phase conjugate mirror and cancels out any birefringent effects the beam
experienced along the forward path.
Princetel's FRM series Faraday rotator mirrors offer strong suppression against secondary reflections (-55 dB), a feature critical to
most interferometer applications.
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| SPECIFICATIONS |
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 PARAMETERS |
VALUES |
| Wavelength |
1310 or 1550 nm |
| Insertion loss |
<1 dB (typical: 0.5 dB) |
| Polarization rotation accuracy |
<+/-2 deg. (typical: <+/-1 deg.) |
| Return loss |
>55 dB (non reflective surfaces) |
| Pulling strength |
10 N (900 um jacket) |
| Optical power handling |
23 dBm |
| Working temperature |
-40 to 65 C/FRM, -20 to 65 C/FRM4 |
| Storage temperature |
-60 to 85 C/FRM, -40 to 75 C/FRM4 |
| Humidity tolerance |
95% RH non condensing |
| Housing material |
Stainless steel |
| Fiber types |
Corning SMF28 with 900 um buffer |
| Connector types |
FC, SC, ST, SMA, or LC (& APC counterparts) |
| Dimensions |
6x9 mm (diaxL)/FRM, 4x20 mm (diaxL)/FRM4 |
| Weight |
4 g/FRM, 2 g/FRM4 |
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CREATE YOUR PART NUMBER
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FRM-
wavelength code-
fiber code-
connector code
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FRM4-
wavelength code-
fiber code-
connector code
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DOCUMENTS DOWNLOAD
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