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FIBER COMPONENTS: Faraday rotator mirror

FRM-155-28

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Michelson interferometer

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.

SPECIFICATIONS
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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FRM- wavelength code- fiber code- connector code
FRM4- wavelength code- fiber code- connector code
DOCUMENTS DOWNLOAD

PDF datasheet in more details (0.2kB) CLICK HERE

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