Acousto-optic Q-switched solid state laser
US5193096A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 2, 1991 |
| Grant date | Mar 9, 1993 |
| Priority date | — |
| Expiry date | Dec 2, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/0941
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A Q-switched solid state laser provided with a laser medium, a pump source for generating pumping light used to pump the laser medium, a pair of laser resonance mirrors respectively placed at both sides of the laser medium and a Q-switching acousto-optical element intervening between the pair of laser resonance mirrors for controlling Q-switching oscillation by abruptly changing a loss of resonant laser light passing therethrough. Further, the Q-switching acousto-optical element satisfies a predetermined condition .vertline.Ms.vertline..gtoreq.1.times.10.sup.-12 S.sup.3 /g..degree.C. where Ms denotes a parameter defined as Ms=M/(ds/dt) by letting (ds/dt) designate a thermal change in optical path of the Q-switching acousto-optical element and also letting M represent a performance index of an acousto-optical material of the acousto-optical element. Thereby, the Q-switched solid state laser excels in what is called a "beam pointing stability" and "pulse-to-pulse stability".
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.