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. 02, 2021
Filed:
Nov. 02, 2017
Ntt Electronics Corporation, Yokohama, JP;
Nippon Telegraph and Telephone Corporation, Tokyo, JP;
Tomohiro Nakanishi, Yokohama, JP;
Motoki Minami, Yokohama, JP;
Satoru Konno, Yokohama, JP;
Yuichi Suzuki, Yokohama, JP;
Teruaki Sato, Yokohama, JP;
Shigeo Nagashima, Yokohama, JP;
Shinji Mino, Yokohama, JP;
Motohaya Ishii, Yokohama, JP;
Shunichi Soma, Atsugi, JP;
Shin Kamei, Atsugi, JP;
Shuichiro Asakawa, Atsugi, JP;
NTT ELECTRONICS CORPORATION, Kanagawa, JP;
NIPPON TELEGRAPH AND TELEPHONE CORPORATION, Tokyo, JP;
Abstract
An optical circuit board which is mounted with a loop-back circuit for returning aligning light to the fiber array in the vicinity of the fiber array connection end. Since an aligning loop-back circuit can be formed in an optical waveguide pattern, a production cost does not increase in comparison to an optical circuit board of the related art. The aligning light combined from the optical fiber to the aligning port of the optical circuit board is returned to the optical fiber around the loop-back circuit. Therefore, it is possible to perform alignment using the returned light. That is, alignment can be performed while being mounted on a package without installing a light-reflecting film or mirror.