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测量光纤有效弹光系数的一种新方法
引用本文:彭保进,廖延彪,张敏,沈亚强,金洪震,赖淑蓉.测量光纤有效弹光系数的一种新方法[J].光学技术,2005,31(5):655-658.
作者姓名:彭保进  廖延彪  张敏  沈亚强  金洪震  赖淑蓉
作者单位:1. 浙江师范大学,信息光学研究所,金华,321004;清华大学,电子工程系,北京,100084
2. 清华大学,电子工程系,北京,100084
3. 浙江师范大学,信息光学研究所,金华,321004
基金项目:海洋863项目(No.2001AA602011-11),浙江省科技计划项目(No.2005C31011)
摘    要:针对目前许多新型光纤有效弹光系数测量的需要,报导了用光纤布喇格光栅(FBG)传感器测量光纤有效弹光系数的新方法。用一个温度参考光栅、一个测量光栅和一已知膨胀系数的材料,结合光纤布喇格光栅的特有性质进行了测量。建立了实验系统,实验结果表明,系统可以有效地解决温度与应变对光栅存在交叉敏感的问题,成功地测出了光纤有效弹光系数,测量误差小于1.3%。

关 键 词:光纤布喇格光栅  应变  有效弹光系数  光电检测
文章编号:1002-1582(2005)05-0655-03
修稿时间:2004年3月27日

New method of measuring fibers' valid elastic-optic constant
PENG Bao-jin,LIAO Yan-biao,ZHANG Min,SHEN Ya-qiang,JIN Hong-zhen,LAI Shu-rong.New method of measuring fibers'''' valid elastic-optic constant[J].Optical Technique,2005,31(5):655-658.
Authors:PENG Bao-jin  LIAO Yan-biao  ZHANG Min  SHEN Ya-qiang  JIN Hong-zhen  LAI Shu-rong
Institution:PENG Bao-jin~
Abstract:A new way to measure fibers' valid elastic-optic constant was presented which is based on optical fiber Bragg grating sensor. The method caters for the need of measuring new-style fibers' valid elastic-optic constants presently. The constant was measured by a temperature referrence gratin,a measuremental grating and one material known of expansion coefficient,combining with the characteristic of fiber Bragg grating. Experimental setup and measurement principle were discussed.The result of experiment proved that the system can solve the existent cross sensitive problem which caused by temperature and the strain effectively. The fiber's valid elastic-optic constants was measured successfully. The result of measurement proved that the error is smaller than 1.3 %.
Keywords:optical fiber Bragg grating  strain  valid elastic-optic constants  photoelectric detection
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