Wavelength conversion method, wavelength conversion device, and laser beam machine
US7142354B2 · kind B2 · utility
4Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 12, 2001 |
| Grant date | Nov 28, 2006 |
| Priority date | — |
| Expiry date | Feb 6, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/3505
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In a wavelength converting method, an ambient that is in contact with a surface of a non-linear optical crystal from which wavelength-converted light is outputted is a gas that is lower in content of nitrogen than air. A wavelength converting device includes a device for controlling the ambient in contact with a surface of the non-linear optical crystal from which the wavelength-converted light is outputted so the ambient is lower in nitrogen than air. A laser machining device includes the wavelength converting device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.