Frequency stabilized laser
US4592058A · kind A · utility
16Cited by
9References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 10, 1984 |
| Grant date | May 27, 1986 |
| Priority date | — |
| Expiry date | Aug 10, 2004 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1396
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A frequency control system for a laser for compensating for thermally-induced laser resonator length changes. The frequency control loop comprises a frequency reference for producing an error signal and electrical means to move a length-controlling transducer in response thereto. The transducer has one of the laser mirrors attached thereto. The effective travel of the transducer is multiplied severalfold by circuitry for sensing when the transducer is running out of extension and in response thereto rapidly moving the transducer and its attached mirror toward its midrange position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.