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:
Feb. 23, 2021
Filed:
Feb. 22, 2020
Applicant:
Serguei Koulikov, Los Altos, CA (US);
Inventor:
Serguei Koulikov, Los Altos, CA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01N 21/3504 (2014.01); G01N 21/71 (2006.01); G01N 33/15 (2006.01); G01N 21/27 (2006.01); G01N 21/31 (2006.01); G01J 3/42 (2006.01); G01N 21/39 (2006.01); G01N 21/17 (2006.01);
U.S. Cl.
CPC ...
G01N 21/3504 (2013.01); G01J 3/42 (2013.01); G01N 21/27 (2013.01); G01N 21/31 (2013.01); G01N 21/39 (2013.01); G01N 21/716 (2013.01); G01N 33/15 (2013.01); G01N 2021/1704 (2013.01); G01N 2021/1748 (2013.01); G01N 2021/399 (2013.01); G01N 2201/0612 (2013.01);
Abstract
The present invention provides a system for measuring concentrations of trace gases in gas mixtures using an absorption spectroscopy method. The system comprising: a resonant optical cavity containing a gas mixture, a continuous-wave external cavity laser, a detector system for measuring an absorption of laser light by the gas in the resonant optical cavity, wherein the ratio of the round-trip length of the external cavity laser to the round-trip length of the resonant optical cavity or its inverse value is between N−0.2 and N+0.2, where N is a positive integer number.