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.
Patent No.:
Date of Patent:
Aug. 21, 2007
Filed:
Dec. 15, 2004
Gang Lei, San Diego, CA (US);
Charles Andy Hulse, Sebastopol, CA (US);
Vincent Issier, Windsor, CA (US);
Richard A. Bradley, Jr., Santa Rosa, CA (US);
Robert G. Waarts, Los Altos, CA (US);
Gang Lei, San Diego, CA (US);
Charles Andy Hulse, Sebastopol, CA (US);
Vincent Issier, Windsor, CA (US);
Richard A. Bradley, Jr., Santa Rosa, CA (US);
Robert G. Waarts, Los Altos, CA (US);
JDS Uniphase Corporation, Milpitas, CA (US);
Abstract
A diode-pumped laser with a direct edge coupling of a pump beam is provided. The laser includes a microchip laser cavity optically pumped by a laser diode emitting an astigmatic pump beam having a substantially elliptical beam cross-section at an output laser diode facet. The microchip laser cavity is disposed at a substantial distance exceeding 0.001″ from the laser diode pump where the astigmatic pump beam has a greatly reduced ellipticity, providing high laser output efficiency without coupling lens element between the laser cavity and the laser diode pump. The pumping arrangement is favourable for single-mode lasing. In some embodiments, the laser cavity includes nonlinear crystal for intra-cavity SHG, a saturable absorber for passive Q-switching and mode locking, and a polarizing prism.