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.

Date of Patent:
May. 30, 2023

Filed:

Nov. 15, 2021
Applicant:

Lumentum Operations Llc, San Jose, CA (US);

Inventors:

Adrian Perrin Janssen, Paignton, GB;

Robert Simpson, Paignton, GB;

Paul Firth, Totnes, GB;

Assignee:

Lumentum Operations LLC, San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/28 (2006.01); G01J 9/02 (2006.01); G02B 17/00 (2006.01);
U.S. Cl.
CPC ...
G02B 5/284 (2013.01); G01J 9/0246 (2013.01); G02B 17/006 (2013.01); G01J 2009/0257 (2013.01);
Abstract

In some implementations, an optical assembly comprises an optical cavity; one or more detectors; and an optical component having an input face and an output face configured to receive an input beam to the input face and to produce one or more primary output beams, and a plurality of secondary output beams from the output face, the secondary output beams resulting from multiple internal reflections within the optical component. At least one of the input face is not perpendicular to the input beam or the output face is not perpendicular to the one or more primary output beams. Each primary output beam is transmitted through the optical cavity perpendicular to at least one surface of the optical cavity, and directed to a respective one of the one or more detectors. Each detector is arranged to exclude at least a portion of each secondary output beam.


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