Research on long period fiber grating transmission spectrum in uniform and non-uniform temperature fields

Q4 Physics and Astronomy

光学技术 Pub Date : 2014-01-01 DOI:10.3788/GXJS20144005.0454

柳翔 Liu Xiang, 励强华 Li Qianghua

引用次数: 0

Abstract

The characteristics of long period fiber grating transmission in uniform temperature field and non-uniform temperature fields is theoretically analyzed.The spectrum characteristics of long period fiber grating transmission in uniform temperature field and non-uniform temperature field with experiments are demonstrated.Experiments prove that with the rise of temperature,the synchronous wave center of fiber grating drifts to the long wave direction,the reverse is also the true,and drift distance has linear relations with the variation of temperature.In non-uniform temperature filed,when the temperature difference on both grating ends of long period fiber grating changes,the 3dB spread of synchronous waves show the linear increasing trend.

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均匀和非均匀温度场下长周期光纤光栅透射谱的研究

从理论上分析了长周期光纤光栅在均匀温度场和非均匀温度场中的传输特性。通过实验论证了长周期光纤光栅在均匀温度场和非均匀温度场中的传输光谱特性。实验证明，随着温度的升高，光纤光栅的同步波中心向长波方向漂移，反之亦然，且漂移距离与温度的变化呈线性关系。在非均匀温度场中，当长周期光纤光栅两端的温差发生变化时，同步波的3dB传播呈线性增加趋势。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

光学技术 Physics and Astronomy-Atomic and Molecular Physics, and Optics

CiteScore

0.60

自引率

0.00%

发文量

6699

期刊介绍： The predecessor of Optical Technology was Optical Technology, which was founded in 1975. At that time, the Fifth Ministry of Machine Building entrusted the School of Optoelectronics of Beijing Institute of Technology to publish the journal, and it was officially approved by the State Administration of Press, Publication, Radio, Film and Television for external distribution. From 1975 to 1979, the magazine was named Optical Technology, a quarterly with 4 issues per year; from 1980 to the present, the magazine is named Optical Technology, a bimonthly with 6 issues per year, published on the 20th of odd months. The publication policy is: to serve the national economic construction, implement the development of the national economy, serve production and scientific research, and implement the publication policy of "letting a hundred flowers bloom and a hundred schools of thought contend".