Apparatus and method for stabilizing lasers using dual etalons
US7327471B2 · kind B2 · utility
3Cited by
2References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 25, 2005 |
| Grant date | Feb 5, 2008 |
| Priority date | — |
| Expiry date | Nov 5, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1305
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Method and apparatus are disclosed that enable lasers to be stabilized in frequency to a high precision while simultaneously enabling rapid re-acquisition of stabilization control loops in the event of frequency locking loss. The principle of operation is to incorporate two etalons, one having a high finesse for frequency high stability, and one having a low finesse for wide error signal locking range, and electronics that pass control between two control systems in such a manner that any loss of frequency locking is rapidly re-acquired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.