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:
Jan. 07, 2025

Filed:

Aug. 09, 2021
Applicant:

Furukawa Electric Co., Ltd., Tokyo, JP;

Inventors:

Kazuki Yamaoka, Tokyo, JP;

Maiko Ariga, Tokyo, JP;

Yusuke Inaba, Tokyo, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01S 5/0239 (2021.01); H01S 5/02218 (2021.01); H01S 5/02253 (2021.01);
U.S. Cl.
CPC ...
H01S 5/0239 (2021.01); H01S 5/02218 (2021.01); H01S 5/02253 (2021.01);
Abstract

An optical module includes: an optical functional element outputting a first light beam; a first optical part receiving the first light beam, having a predetermined effect on the first light beam, and outputting the affected first light beam as a second light beam; a second optical part receiving the second light beam, having a predetermined effect on the second light beam, outputting the affected second light beam as a third light beam, and reflecting a reflected light beam in a direction not coupled to the first optical part, the reflected light beam being generated from the second light on an incident surface on which the second light beam is incident; a housing accommodating the optical functional element, the first optical part, and the second optical part; and an optical attenuator provided inside the housing and attenuating power of the reflected light beam incident on the optical attenuator.


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