Q-switched laser system and method to prevent seeding from pre-lasing
US9373929B2 · kind B2 · utility
0Cited by
4References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Oct 18, 2006 |
| Grant date | Jun 21, 2016 |
| Priority date | — |
| Expiry date | Sep 24, 2028 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1643
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A method for preventing spatial or spectral beam seeding in a Q-switched laser is described. The Q-switch trigger of the laser is delayed by several laser resonator lifetimes after the end of the pump pulse. In this way, beam seeding is completely eliminated whilst pre-lase is maintained. The method described may be used for any laser system where the fall time of the pump radiation is sufficiently fast with respect to the upper state lifetime of the laser medium.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.