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. 08, 2005
Filed:
Dec. 25, 2001
Frank Xiaofan Zhu, Cupertino, CA (US);
Shigeki Nagasaka, Osaka, JP;
Naoki Morimoto, Osaka, JP;
Kenichi Nakama, Osaka, JP;
Frank Xiaofan Zhu, Cupertino, CA (US);
Shigeki Nagasaka, Osaka, JP;
Naoki Morimoto, Osaka, JP;
Kenichi Nakama, Osaka, JP;
Nippon Sheet Glass Co., Ltd., Tokyo, JP;
Abstract
The present invention relates to a method of aligning and assembling an optical demultiplexer module having an input fiber, a collimator lens, a diffraction grating, and a photodetector array, and a mechanism for automatically aligning such an optical demultiplexer module. The method comprises the steps of preparing a submodule A including the input fiber and the photodetector array and a submodule B including the diffraction grating and the collimator lens, preparing an alignment jig for allowing the submodules A, B to move independently of each other, fixing the submodules A, B to the adjustment jig, and applying light from the input fiber and moving the submodule B with respect to the submodule A for maximizing a light output from a photodetector.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile