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:
Jul. 11, 2017
Filed:
May. 18, 2016
Applicant:
Lakehead University, Thunder Bay, CA;
Inventor:
Gautam Das, Thunder Bay, CA;
Assignee:
LAKEHEAD UNIVERSITY, Thunder Bay, Ontario, CA;
Primary Examiner:
Int. Cl.
CPC ...
G01J 4/00 (2006.01); G01N 21/39 (2006.01); H01S 3/067 (2006.01); H01S 3/10 (2006.01); H01S 3/11 (2006.01); H01S 3/094 (2006.01); G01J 3/10 (2006.01); G01J 3/02 (2006.01); G01J 3/42 (2006.01); H01S 3/16 (2006.01); G01N 33/00 (2006.01);
U.S. Cl.
CPC ...
H01S 3/06791 (2013.01); G01J 3/0218 (2013.01); G01J 3/0224 (2013.01); G01J 3/10 (2013.01); G01J 3/42 (2013.01); G01N 21/39 (2013.01); H01S 3/094088 (2013.01); H01S 3/10061 (2013.01); H01S 3/1115 (2013.01); G01N 33/0037 (2013.01); G01N 2021/396 (2013.01); G01N 2201/06113 (2013.01); G01N 2201/08 (2013.01); H01S 3/0675 (2013.01); H01S 3/06712 (2013.01); H01S 3/1608 (2013.01);
Abstract
A gas detection system uses intracavity fiber laser absorption spectroscopy. The fiber laser is stabilized by a saturable absorber, and the sensitivity is enhanced by multiple circulations of amplified spontaneous emission light under threshold conditions, and multi-longitudinal mode oscillation of the laser.