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Proceedings Paper

Research of FBG multiplexing/demodulation on LPG
Author(s): Weihua Zhang; Zhengrong Tong; Bo Liu; Jianhua Luo; Xiaoyi Dong
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Paper Abstract

Long-period grating(LPG) which has a grating period of more than 100μm is a new kind of fiber gratting and its principle is that optical power is coupled from the forward transmission fundamental core mode to the forward transmission cladding modes and is attenuated after some distance. Transmission spectrum of LPG has a range close to linearity in both side of the peak. This range can be use as double edge filter on this property. Cascaded LPGs have special spectrum which is used as filters in multiple technology.

Paper Details

Date Published: 21 November 2007
PDF: 4 pages
Proc. SPIE 6781, Passive Components and Fiber-based Devices IV, 678144 (21 November 2007); doi: 10.1117/12.743198
Show Author Affiliations
Weihua Zhang, Tianjin Univ. of Technology (China)
Nankai Univ. (China)
Zhengrong Tong, Tianjin Univ. of Technology (China)
Bo Liu, Nankai Univ. (China)
Jianhua Luo, Nankai Univ. (China)
Xiaoyi Dong, Nankai Univ. (China)

Published in SPIE Proceedings Vol. 6781:
Passive Components and Fiber-based Devices IV
Ming-Jun Li; Jianping Chen; Satoki Kawanishi; Ian H. White, Editor(s)

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