Integrated wavelength locker
US11476636B2 · kind B2 · utility
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13References
8Claims
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Key dates
| Filing date | Feb 26, 2019 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Apr 19, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/12004
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Described are various configurations of integrated wavelength lockers including asymmetric Mach-Zehnder interferometers (AMZIs) and associated detectors. Various embodiments provide improved wavelength-locking accuracy by using an active tuning element in the AMZI to achieve an operational position with high locking sensitivity, a coherent receiver to reduce the frequency-dependence of the locking sensitivity, and/or a temperature sensor and/or strain gauge to computationally correct for the effect of temperature or strain changes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.