Method for changing a wavelength of a laser light
US6633594B1 · kind B1 · utility
7Cited by
13References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 18, 2000 |
| Grant date | Oct 14, 2003 |
| Priority date | — |
| Expiry date | Dec 31, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3542
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The efficiency of wavelength conversion of laser light can be improved by allowing incident laser light to pass through nonlinear optical crystals a multiple of times. In converting the wavelength of laser light to generate second- and higher harmonic waves, a returning mirror, a polarizer and nonlinear optical crystals are combined and the rotation of polarized light is utilized to allow the incident laser light to undergo multiple passes through the nonlinear optical crystals so that it can be converted in wavelength with higher efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.