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. 12, 2002
Filed:
Dec. 03, 1999
Chieh Hu, Taichung, TW;
Shu-Mei Yang, Taichung Hsien, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
The invention describes a structure for an optical fiber grating package. The structure has a fiber grating that is mounted on a multi-layer metal plate. The fiber grating is formed on a fiber in the desired portion. Two ends of the fiber grating are secured to the two ends of the multi-layer metal plate. The multi-layer metal plate includes, for example, a bimetal plate and a thinner metal plate on the bimetal plate. The thinner metal plate is used to reduce the thermal expansion effect on the fiber grating. The structure further includes an adjusting plate located on the multi-layer metal plate on the side where the fiber grating is mounted so that the adjusting plate, serving as a pad, can lift the fiber of the fiber grating. The adjusting plate is also located a position between the grating portion of the fiber grating and one secured end of the fiber grating. As a result, a grating pitch of the fiber grating can be further precisely adjusted by shifting the relative location of the adjusting plate to causing a necessary tension of the fiber. The multi-layer metal plate with the fiber grating is held by a metal substrate.