Long-period fiber gratings written in the microstructure specialty fibers

Author

Yunqi Liu

Author_Institution

Key Lab. of Specialty Fiber Opt. & Opt. Access Networks, Shanghai Univ., Shanghai, China

fYear

2013

fDate

6-9 July 2013

Firstpage

81

Lastpage

82

Abstract

We demonstrate the fabrication of long-period fiber gratings (LPFGs) written by CO₂ laser in different micro-structure specialty fibers. The characteristics of grating growth were studied by using the dynamic analysis of laser writing process. It can be believed that the residual stress relaxation, glass structure changes, and frozen of the non-uniformed external stress account for the formation of LPFGs. The sensing characteristics of the LPFGs were investigated experimentally before and after nano-film coating of the gratings.

Keywords

optical fibres; optical sensors; LPFG; dynamic analysis; glass structure changes; laser writing process; long-period fiber gratings; microstructure specialty fibers; nano-film coating; residual stress relaxation; Fiber gratings; Fiber lasers; Optical fiber networks; Optical fiber polarization; Optical fiber sensors; Writing; CO2 laser; coating; long-period fiber grating; optical sensors; specialty fibers;

fLanguage

English

Publisher

ieee

Conference_Titel

Advanced Infocomm Technology (ICAIT), 2013 6th International Conference on

Conference_Location

Hsinchu

Print_ISBN

978-1-4799-0464-8

Type

conf

DOI

10.1109/ICAIT.2013.6621504

Filename

6621504