Research of FBG multiplexing/demodulation on LPG

Weihua Zhang; Zhengrong Tong; Bo Liu; Jianhua Luo; Xiaoyi Dong

doi:10.1117/12.743198

21 November 2007 Research of FBG multiplexing/demodulation on LPG

Weihua Zhang, Zhengrong Tong, Bo Liu, Jianhua Luo, Xiaoyi Dong

Proceedings Volume 6781, Passive Components and Fiber-based Devices IV; 678144 (2007) https://doi.org/10.1117/12.743198
Event: Asia-Pacific Optical Communications, 2007, Wuhan, China

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.

Citation Download Citation

Weihua Zhang, Zhengrong Tong, Bo Liu, Jianhua Luo, and Xiaoyi Dong "Research of FBG multiplexing/demodulation on LPG", Proc. SPIE 6781, Passive Components and Fiber-based Devices IV, 678144 (21 November 2007); https://doi.org/10.1117/12.743198

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