Tunable magneto-optical wavelength filter of long-period fiber grating with magnetic fluids

被引：146
|
作者：
Liu, Ting
Chen, Xianfeng [1 ]
Di, Ziyun
Zhang, Junfeng
Li, Xinwan
Chen, Jianping
机构：
[1] Shanghai Jiao Tong Univ, Dept Phys, Shanghai 200240, Peoples R China
[2] Shanghai Jiao Tong Univ, State Key Lab Fiber Opt Local Area Commun Network, Shanghai 200240, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2007年 / 91卷 / 12期
基金：
中国国家自然科学基金;
关键词：
D O I：
10.1063/1.2787970
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
In this paper, the authors propose a magneto-optical tunable filter based on a long-period fiber grating (LPG) coated with magnetic fluids (MFs) as the ambient media. By applying a tunable magnetic field, the center wavelength shift of the attenuation band of LPG is found as large as 7.4 nm. The refractive index dependence of MF on the external magnetic intensity is measured and the simulation results show that it is well agreeable with the experimental observations. (c) 2007 American Institute of Physics.
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页数：3
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