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:
Dec. 26, 2017
Filed:
Dec. 30, 2013
Applicant:
Nlight Photonics Corporation, Vancouver, WA (US);
Inventors:
Timothy S. McComb, Portland, OR (US);
Dennis McCal, Lake Oswego, OR (US);
Assignee:
nLIGHT, Inc., Vancouver, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 3/091 (2006.01); H01S 3/067 (2006.01); H01S 3/23 (2006.01); H01S 5/042 (2006.01); H01S 5/062 (2006.01); H01S 3/094 (2006.01);
U.S. Cl.
CPC ...
H01S 3/06754 (2013.01); H01S 3/2375 (2013.01); H01S 5/0428 (2013.01); H01S 5/06216 (2013.01); H01S 3/094003 (2013.01); H01S 2301/02 (2013.01);
Abstract
Gain switched laser diode pulses are used as seed pulses for optical pulse generation. ASE is reduced by applying a prebias to the laser diodes at an amplitude less than that associated with a laser diode threshold. An electrical seed pulse having an amplitude larger than that associated with laser threshold is applied within about 10-100 ns of the prebias pulse. The resulting laser diode pulse can be amplified in a pumped, rare earth doped optical fiber, with reduced ASE.