Ring laser gyroscope utilizing phase detector for minimizing beam lock-in
US4473297A · kind A · utility
16Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 12, 1981 |
| Grant date | Sep 25, 1984 |
| Priority date | — |
| Expiry date | Nov 12, 2001 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/083
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Two of the three reflecting mirrors in a ring laser gyroscope are provided with transducers permitting the mirrors to control the ring laser gyroscope laser path. The third mirror is partially reflecting to permit some cavity radiation to exit. The radiation includes winking signal components which are related to laser beam lock-in. By controlling the phase difference between the signal components, minimum lock-in may be achieved.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.