Effects of strain and temperature change on the spectra of superstructure fiber gratings

Author

Liang, Lei ; Wang, Yongjiao ; Mi, Haokun ; Yuan, Yinquan

Author_Institution

Key Lab. of Fiber Opt. Sensing Technol. & Inf. Process. (Minist. of Educ.), Wuhan Univ. of Technol., Wuhan, China

Volume

2

fYear

2011

fDate

29-31 July 2011

Abstract

For the superstructure fiber grating (SFG) consisting of a fiber Bragg grating (FBG) and a long period fiber grating (LPFG), a similarity transformation method for the coupled mode equations is presented, the effects of strain gradient and temperature gradient along the SFG on the transmission and reflection spectra of SFG have been investigated. The simulations show that the reflection spectrum and the transmission spectrum corresponding to v-order cladding mode will shift independently with the strain gradient or temperature gradient along the SFG according to a certain law.

Keywords

Bragg gratings; coupled mode analysis; optical fibre cladding; optical fibre dispersion; piezo-optical effects; reflectivity; refractive index; thermo-optical effects; transparency; FBG; coupled mode equations; fiber Bragg grating; long period fiber grating; reflection spectra; refractive index; similarity transformation method; strain gradient effect; superstructure fiber grating; temperature gradient effect; transmission spectra; v-order cladding mode; Fiber gratings; coupled mode theory; strain; superstructure fiber grating; temperature change;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronics and Optoelectronics (ICEOE), 2011 International Conference on

Conference_Location

Dalian

Print_ISBN

978-1-61284-275-2

Type

conf

DOI

10.1109/ICEOE.2011.6013229

Filename

6013229