Laser light source
US6931047B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 2002 |
| Grant date | Aug 16, 2005 |
| Priority date | — |
| Expiry date | Sep 19, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1024
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In the first period from pumping start time T1 to time T2 in a laser light source 1, the power of pumping light L1 outputted from a pumping light source 41 so as to irradiate a laser medium 21 is at value P1 whereas the power of light L2 incident on a saturable absorber 30 after being emitted from the laser medium 21 is at an absorption saturation threshold or lower, which causes a resonator 10 to lower its Q-value, thereby suppressing the laser oscillation. Immediately before time T2, the power of light L2 is slightly lower than the absorption saturation threshold. In the second period subsequent to the first period, the power of light L2 is at value P2 greater than the above-mentioned value P1, whereas the power of light L2 exceeds the absorption saturation threshold, which causes the resonator 10 to increase its Q-value, whereby a mirror 12 outputs pulse laser light L3 to the outside.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.