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:
Oct. 20, 2020

Filed:

Apr. 02, 2019
Applicant:

Cloud Light Technology Limited, Hong Kong, HK;

Inventors:

Vincent Wai Hung, Hong Kong, HK;

Vivian Wei Ma, Hong Kong, HK;

Wing Keung Mark Mak, Hong Kong, HK;

Chih Hsun Lin, Hong Kong, HK;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 6/42 (2006.01); H01S 5/022 (2006.01);
U.S. Cl.
CPC ...
G02B 6/4227 (2013.01); G02B 6/4238 (2013.01); G02B 6/4245 (2013.01); H01S 5/02252 (2013.01);
Abstract

A method and a system for active alignment of a light source assembly along three dimensions in an optical bench plane are provided. The light source assembly, preferably a laser diode on its sub-mount, is actively aligned in three dimensions, longitudinal, transection and vertical along the optical bench. The light source assembly is attached on edge of the optical bench, via adhesion processes, such as solder welding. Optical components such as collimator lens, isolator, etc are first passively aligned on the optical bench using alignment marks and epoxy slots provided on the surface of the optical bench. Then, laser diode, mounted on a laser diode sub-mount, is aligned in X and Z direction. Thereafter, the light source assembly is pushed towards the edge of the optical bench and attached with the edge via a solder joint. Also, a compensator can be actively aligned until the optimum light intensity achieved.


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