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:
Oct. 30, 2001
Filed:
Jul. 14, 1999
Takashi Kato, Kanagawa, JP;
Hiroyuki Nakaya, Kanagawa, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Abstract
The present invention relates to a ferrule assembly capable of yielding a laser resonator which is less likely to be influenced by variations in manufacture and changes in its environment of use, and an optical module equipped with this ferrule assembly. The ferrule assembly comprises a fiber grating and a ferrule attached to a front end portion of the fiber grating. As one of structural features of the ferrule assembly, the portion of the fiber grating excluding a grating region is secured to a securing portion of the ferrule, whereas the grating region is accommodated in an accommodating portion of the ferrule in a state separated from the inner wall of the accommodating portion by a predetermined distance without being secured to the ferrule.