Solid-state laser device comprising a temperature-controlled thermal conductive support
US5267252A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 26, 1992 |
| Grant date | Nov 30, 1993 |
| Priority date | — |
| Expiry date | Aug 26, 2012 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1317
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a solid-state laser device which emits an output laser beam by pumping a solid-state laser medium in a laser resonator by an excitation laser beam generated from a semiconductor laser unit, both the solid-state laser medium and the laser resonator are mounted on a common thermal conductive support which is thermally controlled by a temperature controller through a Peltier effect element to keep a temperature of the thermal conductive support substantially constant. A thermistor is attached to the thermal conductive support to detect the temperature of the support and to supply the temperature controller with a temperature detection signal representative of the temperature of the support. The temperature controller carries out proportional-plus-integral-plus-derivative control to supply a control signal to the Peltier effect element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.