Shift and splitting of resonant peaks in long-period fiber gratings for sensing applications

Author

Younggeun Han ; Byeong Ha Lee ; Won-Taek Han ; Un-Chul Paek ; Youngjoo Chung

Author_Institution

Dept. of Inf. & Commun., Inst. of Sci. & Technol., Kwangju, South Korea

Volume

4

fYear

2001

fDate

17-22 March 2001

Abstract

We also applied long period fibre gratings (LPFGs) to various sensing application such as bend, transverse load, and index change sensors by using the peak-splitting effect of LPFGs. Furthermore, since the lower order cladding mode is insensitive to the external perturbation change compared with the higher order cladding modes,We will discuss a simple method to change the transmission characteristics of long-period fiber gratings using UV post-exposure. Application of the resonant peak splitting to bend, transverse load, and index change sensing will be described.

Keywords

bending; diffraction gratings; fibre optic sensors; mechanical variables measurement; optical fibre fabrication; refractive index measurement; UV post-exposure; bend sensing; fiber sensing applications; index change sensing; long-period fiber gratings; optical fibre fabrication; resonant peak splitting; resonant peaks; transmission characteristics; transverse load sensing; Amplitude modulation; Fiber gratings; Optical coupling; Optical fiber communication; Optical fiber devices; Optical fiber filters; Optical fiber sensors; Optical filters; Refractive index; Resonance;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Fiber Communication Conference and Exhibit, 2001. OFC 2001

Conference_Location

Anaheim, CA, USA

Print_ISBN

1-55752-655-9

Type

conf

Filename

927485