Elimination of modulated interference effects in photoelastic modulators
US5652673A · kind A · utility
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12References
8Claims
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Key dates
| Filing date | Jun 24, 1994 |
| Grant date | Jul 29, 1997 |
| Priority date | — |
| Expiry date | Jun 24, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/0131
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Modulated interference effects arising when laser beams are modulated by photoelastic modulators are substantially eliminated by methods and apparatus that extract from the detected beam the modulated, interfering light that emanates from the optical element of the modulator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.