Research and optimization of FBG apodization technic based on Double-exposure method

Author

Xiong, Songsong ; Chen, Shuner ; Ran, Yang ; Liu, Wei Ping

Author_Institution

Dept. of Electron. & Eng., Jinan Univ., Guangzhou, China

fYear

2010

fDate

3-6 Dec. 2010

Firstpage

1

Lastpage

4

Abstract

The reflection spectral influence of fiber Bragg gratings (FBG) caused by refractive index of DC component was analyzed. FBG with double exposure apodized by raised cosine beam, was found the best way to eliminate reflection sidelobe among three beams (raised-cosine, Gaussian and cosine beam).Through adjusting Full Width Half Maximum (FWHM) parameter in the best double-exposure apodising function, the optimal apodising function was obtained with its sidelobe suppression value 35dB.

Keywords

Bragg gratings; optical fibres; optimisation; reflectivity; refractive index; DC; FBG apodization; Gaussian beam; cosine beam; double-exposure method; fiber Bragg gratings; optimization; raised-cosine beam; reflection sidelobe; reflection spectral influence; refractive index; Fiber gratings; Laser beams; Optical fiber theory; Reflection; Reflectivity; Refractive index; FBG; component; double-exposure; refractive index of DC; sidelobe suppression;

fLanguage

English

Publisher

ieee

Conference_Titel

Advances in Optoelectronics and Micro/Nano-Optics (AOM), 2010 OSA-IEEE-COS

Conference_Location

Guangzhou

Print_ISBN

978-1-4244-8393-8

Electronic_ISBN

978-1-4244-8392-1

Type

conf

DOI

10.1109/AOM.2010.5713527

Filename

5713527