Axial strain sensitivity analysis of long period fiber grating by new transfer matrix method

doi:10.1007/s12200-011-0173-6

Front Optoelec Chin

2011, Vol. 4

Issue (4) : 430-433 https://doi.org/10.1007/s12200-011-0173-6

RESEARCH ARTICLE

Axial strain sensitivity analysis of long period fiber grating by new transfer matrix method

Guodong WANG(

), Yunjian WANG, Na LI

School of Electrical Engineering and Automation, Henan Polytechnic University, Jiaozuo 454003, China

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Abstract

The axial strain sensitivity of long period fiber grating (LPFG) is analyzed by new transfer matrix method. The new transfer matrix method can be used to analyze the modes coupling between the core mode and multiple cladding modes. Compared with the previous method used, such as solving the coupled mode equation by the fourth order adaptive step size Runge-Kutta algorithm, the new transfer matrix method (TMM) has a faster calculation speed. Theoretical results are excellent agreement with the method of solving the coupled mode equation (SCME).

Keywords axial strain sensitivity long period fiber grating (LPFG) new transfer matrix method (TMM)

Corresponding Author(s): WANG Guodong,Email:wgd@hpu.edu.cn

Issue Date: 05 December 2011

Cite this article:

Guodong WANG,Yunjian WANG,Na LI. Axial strain sensitivity analysis of long period fiber grating by new transfer matrix method[J]. Front Optoelec Chin, 2011, 4(4): 430-433.

URL:

https://academic.hep.com.cn/foe/EN/10.1007/s12200-011-0173-6
https://academic.hep.com.cn/foe/EN/Y2011/V4/I4/430

Fig.1 Theoretically calculated transmission spectrum by new TMM (solid line) and SCME (dotted line) through a Blackman apodization grating

Fig.2 Computing times for new TMM (?) and SCME (?)

Fig.3 Theoretically calculated transmission spectrum by new TMM through a non-uniform period grating

Fig.4 Transmission spectral of LPFG when different tension is applied to it

Fig.5 Resonance wavelength of LPFG when different tension is applied to it

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