Fiber optic resonator interferometer gyroscope having a resonato

Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer

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372 94, G01C 1972

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active

051373564

ABSTRACT:
A fiber resonator gyro in which the resonator loop includes a first length of fiber having opposed ends into which respective clockwise and counterclockwise beams are launched. A second length of fiber is connected by two coupler means to spaced portions of said first length to form the loop. The couplers are preferably four-way couplers which have ports for dumping resonant radiation.

REFERENCES:
patent: 4533249 (1985-08-01), Webber
patent: 4674881 (1987-06-01), Lawrence et al.
"Passive Fiber-Optic Ring Resonator For Rotation Sensing", Meyer et al., Optics Letters, Dec. 1983, pp. 644-646.

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