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:
Mar. 01, 2011
Filed:
Jun. 25, 2009
Kenji Haga, Aichi, JP;
Yukitoshi Inui, Aichi, JP;
Kazuhiro Terada, Aichi, JP;
Akiko Okita, Aichi, JP;
Masaaki Tsuchimori, Nagoya, JP;
Akari Nakao, Nagoya, JP;
Kenji Haga, Aichi, JP;
Yukitoshi Inui, Aichi, JP;
Kazuhiro Terada, Aichi, JP;
Akiko Okita, Aichi, JP;
Masaaki Tsuchimori, Nagoya, JP;
Akari Nakao, Nagoya, JP;
Toyoda Gosei Co., Ltd., Nishikasugai-gun, Aichi-ken, JP;
Abstract
The optical branching-coupling device having a self-written optical waveguide core is formed without using half mirrors. In the optical branching-coupling device, three POFs are inserted into a housing having an approximately D-shaped sidewall. An approximately semi-columnar region V in the housing was filled with an uncured liquid light-curing acrylic resin. A laser beam was introduced from one of the POFs, and a cured material was formed of the end face of the POF. The diameter was equal to the core diameter of the POF. The cured material grew, resulting in the cured material reaching the end face of another one of the POFs, thereby forming an optical waveguide core. Next, a laser beam was introduced from the end face of the last one of the POFs. The cured material grew, resulting in a connection with the optical waveguide core, thereby forming the optical waveguide core.