Method for producing multiple channel filter based on optical fiber grating
Title：
Method for producing multiple channel filter based on optical fiber grating
Application Number：
 200410083938
Application Date：
 2004/10/13
Announcement Date：
 2005/03/02
Pub. Date：
 2006/06/07
Publication Number：
 1588150
Announcement Number：
 1258686
Grant Date：
 2006-6-7
Granted Pub. Date：
 2006-6-7
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 G02B 6/34, H04B 10/12
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Dai Yitang, Chen Xiangfei, Xu Ximing
Key Words：
 producing method, multiple channel, filter, optical fiber grating
Abstract：
 The invention discloses a method for making optical-fiber grating based multichannel filter, using UV laser and phase template to make exposure on the points at regular intervals in the optical fiber to make it, and requiring the interval of exposure points, the chirp coefficient of the phase template and the phase shifting behind each exposure point meet a simple relationship. The method can make multichannel filters at any intervals but is not limited by the chirp coefficient of the phase template.
Claim：
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