Polarization feedback laser stabilization
US4791633A · kind A · utility
7Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 1987 |
| Grant date | Dec 13, 1988 |
| Priority date | — |
| Expiry date | Sep 28, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1394
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A system for locking two Nd:YAG laser oscillators includes an optical path for feeding the output of one laser into the other with different polarizations. Elliptical polarization is incorporated into the optical path so that the change in polarization that occurs when the frequencies coincide may be detected to provide a feedback signal to control one laser relative to the other.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.