The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Feb. 27, 2018

Filed:

Aug. 18, 2014
Applicant:

Coherent Lasersystems Gmbh & Co. KG, Göttingen, DE;

Inventor:
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/109 (2006.01); H01S 3/091 (2006.01); H01S 3/102 (2006.01); H01S 3/10 (2006.01); H01S 3/16 (2006.01); H01S 3/13 (2006.01);
U.S. Cl.
CPC ...
H01S 3/109 (2013.01); H01S 3/091 (2013.01); H01S 3/1028 (2013.01); H01S 3/10061 (2013.01); H01S 3/1305 (2013.01); H01S 3/1628 (2013.01);
Abstract

An intra-cavity doubled OPS-laser has a laser-resonator including a birefringent filter (BRF) for coarse wavelength-selection, and an optically nonlinear (ONL) crystal arranged for type-II frequency-doubling and fine wavelength-selection. Laser-radiation circulates in the laser-resonator at one of a range of fundamental wavelengths dependent on the resonator length. The ONL crystal has a transmission peak-wavelength dependent on the crystal temperature. Reflection of circulating radiation from the BRF is monitored. The reflection is at a minimum when the ONL crystal transmission-peak wavelength is at the circulating radiation wavelength. The temperature of the ONL crystal is selectively varied to maintain the monitored reflection at about a minimum.


Find Patent Forward Citations

Kannengiesser, Christian. (2018). Optically pumped semiconductor laser with mode tracking (U.S. Patent No. 9905991). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9905991

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