Fiber-optic based remote receiver for laser interferometer systems
US4784489A · kind A · utility
8Cited by
1References
4Claims
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Assignee
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Key dates
| Filing date | Apr 29, 1987 |
| Grant date | Nov 15, 1988 |
| Priority date | — |
| Expiry date | Apr 29, 2007 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01J2009/0226
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A remote receiver for laser interferometer systems is split into two parts connected by a fiber optic link. The front-end of the receiver, located near the remote interferometer optics, houses only the optical components for focusing and mixing the laser beam, and transmits the beam through an optical fiber cable. The back-end of the receiver, located remotely, houses the electronic components for detecting and measuring the frequency difference to produce the signal for the measurement electronics.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.