High efficiency, high power cryogenic laser system
US7466731B2 · kind B2 · utility
2Cited by
3References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 24, 2006 |
| Grant date | Dec 16, 2008 |
| Priority date | — |
| Expiry date | Jul 17, 2026 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S5/02423
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A fiber laser system and a related method for its use, in which one or more fiber laser amplifiers are cryogenically cooled and optimized to operate at a desirably high efficiency. Versions of the laser system using either thulium or erbium doped fibers are disclosed. In a high power version of the system, the outputs of multiple fiber lasers are coherently combined. Cooling by a selected liquefied gas, such as nitrogen, is applied to the fiber laser amplifiers and, optionally, to pump diodes and to optical elements used to combine the outputs of the fiber laser amplifiers.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.