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:
Jan. 05, 2016
Filed:
Feb. 12, 2015
Applicant:
Coherent, Inc., Santa Clara, CA (US);
Inventors:
Michael Hertwig, San Ramon, CA (US);
Sergei Govorkov, Los Altos, CA (US);
Assignee:
Coherent, Inc., Santa Clara, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S 3/094 (2006.01); H01S 3/16 (2006.01); H01S 5/40 (2006.01); H01S 3/0941 (2006.01); H01S 3/06 (2006.01); H01S 3/042 (2006.01); H01S 5/10 (2006.01); H01S 3/08 (2006.01);
U.S. Cl.
CPC ...
H01S 3/094057 (2013.01); H01S 3/0941 (2013.01); H01S 5/4025 (2013.01); H01S 3/042 (2013.01); H01S 3/0606 (2013.01); H01S 3/08059 (2013.01); H01S 3/1611 (2013.01); H01S 3/1671 (2013.01); H01S 5/1014 (2013.01);
Abstract
An optical amplifier includes a solid state gain-element. The gain-element is pumped by pump-radiation from a diode-laser bar. The diode-laser radiation is delivered from the diode-laser bar to the gain-element entirely via a tapered light-guide which guides the radiation only in a fast-axis direction of the diode laser bar. The tapering of the light-guide reduces fast-axis divergence of the pump-radiation by about a factor of ten. The pump-radiation is delivered to the gain-element as a line of radiation homogenized in the fast-axis direction.