System and method of phase-locked fiber interferometry
US11644301B1 · kind B1 · utility
1Cited by
1References
13Claims
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Key dates
| Filing date | Dec 2, 2021 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Jan 24, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B2290/70
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A system and method are provided for optical homodyne detection in an optical fiber interferometer. A detection signal is obtained by interfering an optical data signal with a phase-modulated optical reference signal. The modulator for the optical reference signal is phase-locked to an oscillatory modulation waveform. In embodiments, the modulator includes a piezoelectric element. In more specific embodiments, the modulator is a piezoelectric optical fiber-stretcher.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.