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. 27, 2007
Filed:
May. 17, 2005
Mariko Asano, Sakura, JP;
Koki Narita, Sakura, JP;
Yoshihiro Ouchi, Sakura, JP;
Yasuhiro Tamaki, Sakura, JP;
Yoshikazu Nomura, Sakura, JP;
Hideyuki Hosoya, Tokyo, JP;
Mariko Asano, Sakura, JP;
Koki Narita, Sakura, JP;
Yoshihiro Ouchi, Sakura, JP;
Yasuhiro Tamaki, Sakura, JP;
Yoshikazu Nomura, Sakura, JP;
Hideyuki Hosoya, Tokyo, JP;
Fujikura Ltd., Tokyo, JP;
Abstract
An optical connector ferrule has an optical fiber containing hole reaching from the rear end surface near the end surface and a fine pore extending from the optical fiber accommodating hole to the end surface to be connected. A bare fiber of a polarization-maintaining optical fiber is inserted into the fine pore. Since the length of the fine pore is short, the influence of the uniformness of the adhesive in the fine pore is smaller, and therefore the stress distribution is maintained, resulting in stabilizing the polarization characteristics. A flange unit is attached to the ferrule after an optical fiber is inserted to the ferrule and fixed. Therefore the optical fiber is easily adjusted with respect to the housing in the circumferential direction around the axis, and optical fibers are connected by but joining with high accuracy.