基于电弧放电的相移光纤布拉格光栅制作技术  

Fabrication Technology of Phase Shifted Fiber Bragg Grating with an Arc Discharge Technique

作　　者：刘学静[1] 杨远洪(指导)[1] 张晓哲[1] 靳伟[1,2] 

机构地区：[1]北京航空航天大学仪器科学与光电工程学院光电工程系,北京100191 [2]香港理工大学电机工程系,中国香港

出　　处：《中国激光》2013年第5期145-151,共7页Chinese Journal of Lasers

摘　　要：发现并验证了电弧放电对光栅折射率调制的电弧放电擦除(ADE)效应,利用ADE效应成功制作了相移光纤光栅。基于ADE效应的特点,建立了由这种工艺制作相移光纤光栅的理论模型,基于放电对折射率和光栅擦除长度的影响,采用不同的光栅参数,进行了较全面的仿真研究;同时,设计制作了专用的装置,对基于ADE的相移光栅制作技术进行了全面的实验研究和验证,研究了外部应力、放电参数、光栅参数和退火处理等因素对透射峰值波长、线宽和强度的影响。理论仿真与实验研究结果一致。仿真和实验研究均表明:基于ADE的相移光纤光栅制作技术方便有效,通过优化放电参数和光栅参数,可以制作高质量的相移光栅。Electric arc discharge erasing （ADE） effect, which can erase the refractive index modulation in fiber Bragg gratings （FBGs）, is demonstrated. Based on ADE technique, the phase-shifted fiber Bragg grating （PSFBG） is fabricated successfully. According to the characteristics of the ADE effect, the theoretical model of PSFBGs produced by this process is built, based on the changes of FBG refractive index and erased length by arc discharges, A comprehensive simulation study is conducted under different FBG parameters. The specific fabrication setup is designed, and the fabrication technique of PSFBG based ADE is studied experimentally. The evolution of the PSFBGs＇ main parameters, including the wavelength, the intensity and the bandwidth of transmission peak, is investigated experimentally under various conditions, which include changes of the strain, the parameters of electric arc discharge, the properties of the FBGs and annealing treatment factors. The theoretical simulation and experimental study are consistent. It is shown that the PSFBG fabrication technique based on ADE is convenient and effective, and high-quality PSFBG can be produced by optimizing the parameters of arc discharges and FBGs.

关 键 词：光纤光学 相移光纤布拉格光栅 传输矩阵 电弧放电擦除 

分 类 号：TN253[电子电信—物理电子学]