Optical fiber grating tuner
Title：
Optical fiber grating tuner
Application Number：
 01136576
Application Date：
 2001/10/19
Announcement Date：
 2002/04/17
Pub. Date：
 2003/12/17
Publication Number：
 1344957
Announcement Number：
 1131455
Grant Date：
Granted Pub. Date：
 2003-12-17
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 G02B 6/34, G02F 1/03
Applicant(s)：
 Qinghua Univ.
Inventor(s)：
 Zhao Huafeng, Xue Lin, Li Xuhui
Key Words：
 Optical fiber, grating, tuner
Abstract：
 The present invention belongs to the field of tuning technology, and the optical fiber grating tuner includes one optical fiber grating and one piezoelectric ceramic element. The tuner is featured by that it also includes two support beams, each of which has one end fixed onto one side end of the piezoelectric ceramic element and the other end onto one end of the optical fiber grating, so as to form one bridge struture comprising optical fiber grating suspended over the piezoelectric ceramic element. The present invention has the features that the optical fiber grating is made to obtain the whole amount of deformation of the piezoelectric ceramic element by utilizing the amount of elongation of the piezoelectric ceramic element and that the suspended optical fiber grating will not produce chip. Furthermore, combining several piezoelectric ceramic elements can modulate optical fiber grating in AC or DC mode for wide application range.
Claim：
Priority：
PCT：
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