A modified dual-wavelength matrix calculation method

doi:10.1007/s12200-009-0029-5

Front Optoelec Chin

2009, Vol. 2

Issue (3) : 285-288 https://doi.org/10.1007/s12200-009-0029-5

RESEARCH ARTICLE

A modified dual-wavelength matrix calculation method

Xin LIU¹(

), Deming LIU¹, Wei WU², Zheng QIN³

1. College of Optoelectronic Science and Engineering, Huazhong University of Science and Technology, Wuhan 430074, China; 2. School of Science, Wuhan University of Technology, Wuhan 430070, China; 3. Accelink Technologies Co., Ltd., Wuhan 430074, China

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Abstract

Fiber grating is an optical passive device which has been greatly developed in recent years. The largest application for fiber Bragg grating (FBG) is the fiber sensor. Cross-sensitivity of fiber grating sensor is the most important problem which has restricted the development of the fiber sensor. In this paper, we explain how the cross-sensitivity problem is produced based on the basic principle, and we suggest a modification for the traditional dual-wavelength matrix calculation method, which is used to solve the cross-sensitivity problem. The modified calculation method has a higher accuracy than the traditional one.

Keywords fiber Bragg grating (FBG) cross-sensitivity fiber sensor dual-wavelength matrix

Corresponding Author(s): LIU Xin,Email:lxheroes@126.com

Issue Date: 05 September 2009

Cite this article:

Xin LIU,Deming LIU,Wei WU, et al. A modified dual-wavelength matrix calculation method[J]. Front Optoelec Chin, 2009, 2(3): 285-288.

URL:

https://academic.hep.com.cn/foe/EN/10.1007/s12200-009-0029-5
https://academic.hep.com.cn/foe/EN/Y2009/V2/I3/285

Fig.1 Reflectivity of FBG with small change condition. (a) Original reflectivity of FBG; (b) traditional dual-wavelength matrix method versus modified dual-wavelength matrix method

Fig.2 Reflectivity of FBG with big change condition. (a) Original reflectivity of FBG; (b) traditional dual-wavelength matrix method versus modified dual-wavelength matrix method

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