Nonlinear interferometer systems and methods
US10605727B2 · kind B2 · utility
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4References
35Claims
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Key dates
| Filing date | Apr 28, 2017 |
| Grant date | Mar 31, 2020 |
| Priority date | — |
| Expiry date | May 22, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01C19/64
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Nonlinear interferometers include a nonlinear optical medium that is situated to produce a conjugate optical beam in response to a pump beam and a probe beam. The pump, probe, and conjugate beams propagate displaced from each other along a common optical path. One of the beams is selectively phase shifted, and the beams are then returned to the nonlinear medium, with the selectively phase shift beam phase shifted again. The nonlinear medium provides phase sensitive gain to at least one of the probe or conjugate beams, and the amplified beam is detected to provide an estimate of the phase shift.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.