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. 01, 2022
Filed:
Feb. 22, 2019
Applicant:
Lightmachinery Inc., Ontario, CA;
Inventors:
Assignee:
LightMachinery Inc., Ontario, CA;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01S 3/106 (2006.01); H01S 5/14 (2006.01); G02B 26/00 (2006.01); G02B 5/28 (2006.01); G02B 5/122 (2006.01);
U.S. Cl.
CPC ...
H01S 3/1062 (2013.01); G02B 26/001 (2013.01); H01S 5/141 (2013.01); H01S 5/146 (2013.01); G02B 5/122 (2013.01); G02B 5/284 (2013.01);
Abstract
The invention relates to a multi-pass etalon-based optical filter in which input light once reflected from the etalon is returned back to the etalon for a second reflection to enhance etalon contrast. The external mirror may be tilted relative to the etalon so that two planes of incidence are orthogonal. The multi-pass etalon-based optical filter may be used to clean scattered light from an excitation wavelength in Raman and Brillouin spectroscopy.