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:
Sep. 30, 2014
Filed:
Feb. 27, 2013
Applicant:
Coherent Gmbh, Göttingen, DE;
Inventor:
Stefan Spiekermann, Hannover, DE;
Assignee:
Coherent GmbH, Göttingen, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/10 (2006.01); H01S 3/067 (2006.01); H01S 3/00 (2006.01); H01S 3/094 (2006.01); H01S 3/13 (2006.01); H01S 3/14 (2006.01); H01S 3/16 (2006.01); H01S 3/11 (2006.01);
U.S. Cl.
CPC ...
H01S 3/06754 (2013.01); H01S 3/00 (2013.01); H01S 3/094053 (2013.01); H01S 3/1301 (2013.01); H01S 3/14 (2013.01); H01S 3/16 (2013.01); H01S 3/1611 (2013.01); H01S 3/1671 (2013.01); H01S 3/1673 (2013.01); H01S 3/11 (2013.01); H01S 3/1112 (2013.01);
Abstract
A master oscillator power amplifier (MOPA) system includes an oscillator having a neodymium-doped gadolinium vanadate gain-medium and delivering seed-pulses. A length of single mode fiber is used to broaden the spectrum of the seed pulse. An amplifier having a neodymium-doped yttrium vanadate gain-medium amplifies the spectrally broadened seed-pulses. The gain-spectrum of the amplifier partially overlaps the broadened pulse-spectrum, providing spectral selection of the seed-pulses in addition to amplification. This provides amplified output-pulses having a duration about one-third that of the corresponding seed-pulses.