Fiber optic self-multiplexing amplified ring transducer and forc

Details Fiber optic self-multiplexing amplified ring transducer and forc Fiber optic self-multiplexing amplified ring transducer and forc

1995-05-02

1996-12-31

Turner, Samuel A.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

356345, 25022714, G01B 902, G01L 124

Patent

active

055899374

ABSTRACT:
A fiber optic sensor system includes a first optical power source which icts a light pulse into an optical fiber loop system. The light pulse circulates in the optical fiber loop system at a circulation frequency. The optical fiber loop system includes a transducer which modulates the circulation frequency in response to detecting a changing physical condition, a filter, polarization controller, an isolator, and an optical fiber gain medium for amplifying the light pulse. A second optical power source provides optical energy to the optical fiber gain medium. A detector system transforms a portion of the light pulse received from the optical fiber loop system into an output signal representing the circulation frequency.

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