Fiber optic resonator interferometer gyroscope having a resonator loop formed of two coupled lengths of optical fiber
US5137356A · kind A · utility
7Cited by
2References
6Claims
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Key dates
| Filing date | Apr 18, 1990 |
| Grant date | Aug 11, 1992 |
| Priority date | — |
| Expiry date | Apr 18, 2010 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/727
- WIPO fieldMeasurement
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.