Second harmonic generation method and apparatus
US5671232A · kind A · utility
12Cited by
6References
6Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 29, 1995 |
| Grant date | Sep 23, 1997 |
| Priority date | — |
| Expiry date | Aug 29, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01S3/136
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A second harmonic generation apparatus provides a polarization element transmitting only light polarized in an extra-ordinary axis direction on the proceeding path of a second harmonic emitted from a resonator. The light polarized in the extra-ordinary axis direction is transmitted to a beam splitter, and a part of the polarized light is fed back to a feedback circuit, so that the temperature of a non-linear birefringent crystalline element inside resonator can be stably controlled and the output second harmonic can be stably produced.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.