Light source apparatus
US8305681B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2010 |
| Grant date | Nov 6, 2012 |
| Priority date | — |
| Expiry date | Aug 18, 2030 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/354
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The invention is directed to the provision of a wavelength conversion-type ultraviolet light source apparatus that can obtain a stable output. A light source apparatus according to one mode of the invention includes: a laser light source 1 which produces fundamental light L1; at least one nonlinear optical crystal 3 which takes the fundamental light L1 or a harmonic thereof as incident light and outputs wavelength-converted light L2; and polarization adjusting means 2 which is placed in an optical path of the incident light and causes an output of the wavelength-converted light L2 to change by changing its refractive index for a polarized component of the incident light. The polarization adjusting means 2 changes the amount of change of the refractive index in accordance with an electrical signal output from a photodetector 7.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.