Single longitudinal mode laser
US5657341A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 27, 1995 |
| Grant date | Aug 12, 1997 |
| Priority date | — |
| Expiry date | Dec 27, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/109
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A single longitudinal mode Nd:YAG laser oscillates in the range around 0.9 .mu.m and its oscillation mode is brought to a single longitudinal mode by an etalon disposed in a resonator. The thickness, reflectivity and inclination of the etalon and the separation of the resonator longitudinal modes are adjusted to meet conditions, EQU 0.6%.ltoreq.R.sub.N .ltoreq.3%, 0.2.degree..ltoreq..theta..ltoreq.1.degree. wherein R.sub.N represents the effective reflectivity of the etalon at a wavelength .lambda.=.lambda..sub.0 .+-..DELTA..lambda.c deviated from the resonance wavelength .lambda..sub.0 of the etalon by the separation .DELTA..lambda.c of the resonator longitudinal modes and .theta. represents the inclination of the optical axis of the etalon to the optical axis of the resonator.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.