Patent · US Active

Switchable dual wavelength solid state laser

US8416832B2 · kind B2 · utility

1Cited by

5References

6Claims

0Family size

Assignee

KONINKLIJKE PHILIPS ELECTRONICS NV · NL

Inventors

Ulrich Weichmann · Aachen, DE
Jaione Bengoechea Apezteguia · Aachen, DE
Holger Moench · Vaals, NL

Key dates

Filing date	Aug 12, 2008
Grant date	Apr 9, 2013
Priority date	—
Expiry date	Aug 12, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH01S3/1653
WIPO fieldAudio-visual technology
WIPO sectorElectrical engineering

Abstract

The present invention relates to a switchable dual wavelength solid state laser with a solid state gain medium (1) which is selected to emit optical radiation at a first wavelength with a first polarization and of at least a second wavelength with a second polarization different from said first polarization when optically or electrically pumped. A polarizing device (7) is arranged within the laser cavity, said polarizing device (7) being adjustable at least between said first and said second polarization. The two end mirrors (2, 3) of the laser cavity are designed to allow lasing of the solid state laser at the first wavelength when the polarizing device (7) is adjusted to the first polarization, and to allow lasing of the solid state laser at the second wavelength when the polarizing device (7) is adjusted to the second polarization. The proposed solid state laser allows an easy switching between two emission wavelengths.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.