Solid-state laser
US5440574A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 1994 |
| Grant date | Aug 8, 1995 |
| Priority date | — |
| Expiry date | Jun 2, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/1062
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A solid-state laser for generating harmonic laser light substantially at a desired wavelength has a pump diode body made of a first material, which is preferably aluminum, having a first coefficient of expansion and a laser diode mounted in the pump diode body for generating pump energy. A laser body assembly, which is positioned on the pump diode body, is made of a second material, which is preferably steel, having a second coefficient of expansion. The first and second coefficients of expansion of the respective pump diode body and the laser body assembly have a known relationship such that the laser cavity expands and contracts at a particular rate as the temperature of the laser increases and decreases to provide a substantially constant generation of the harmonic laser light. A laser gain chip mounted on an entrance mirror, which forms the back end of a laser cavity, generates fundamental laser light in response to pump energy from the laser diode. The fundamental laser light passes through an active etalon output mirror into a frequency doubler chip which doubles the frequency thereof to produce harmonic laser light. A mirrored surface, which forms a front end of the laser ca…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.