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:
May. 23, 2006
Filed:
Aug. 14, 2000
Ryokichi Matsumoto, Sakura, JP;
Hideki Sasaki, Sakura, JP;
Kenji Nishide, Sakura, JP;
Ryozo Yamauchi, Sakura, JP;
Shigefumi Yamasaki, Sakura, JP;
Ryokichi Matsumoto, Sakura, JP;
Hideki Sasaki, Sakura, JP;
Kenji Nishide, Sakura, JP;
Ryozo Yamauchi, Sakura, JP;
Shigefumi Yamasaki, Sakura, JP;
Fujikura Ltd., Tokyo, JP;
Abstract
A polarization-maintaining optical fiber component which suppresses coupling of propagating light to a high-order mode at the optical coupling section of the polarization-maintaining optical fiber component, caused by different refractive indexes between the stress applying sections and the cladding, thus reducing excess loss, is constructed by using a polarization-maintaining optical fiber having stress applying sections arranged symmetrically to each other with respect to a core in a cladding surrounding the core, wherein the largest one of those concentric circles of the core or the said cladding which do not reach the stress applying sections and do not include the stress applying sections within has a diameter of 20 μm or greater.