Wavelength locker using multiple feedback curves to wavelength lock a beam
US10461493B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 10, 2018 |
| Grant date | Oct 29, 2019 |
| Priority date | — |
| Expiry date | Aug 10, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/005
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A device may include a first photodetector to generate a first current based on an optical power of an optical beam. The device may include a beam splitter to split a portion of the optical beam into a first beam and a second beam. The device may include a wavelength filter to filter the first beam and the second beam. The wavelength filter may filter the second beam differently than the first beam based on a difference between an optical path length of the first beam and an optical path length of the second beam through the wavelength filter. The device may include second and third photodetectors to respectively receive, after the wavelength filter, the first beam and the second beam and to generate respective second currents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.