Gyros having an optical fiber loop and a dual phase-conjugate mirror
US6222633A · kind A · utility
0Cited by
4References
10Claims
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Assignee
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Key dates
| Filing date | Jan 5, 2000 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Jan 5, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/72
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A gyroscope comprising a source for emitting a light beam, an optical fiber loop in which the light propagates in both directions, a dual phase-conjugate mirror disposed in said loop in such a manner that light reaches said mirror from both sides thereof, recombination means for recombining the light which has propagated round the loop, and detector means for detecting the recombined signal, wherein the loop includes a monomode fiber that does not conserve polarization and wherein depolarization means are disposed between said fiber and the phase-conjugate mirror, on either side thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.