全光纤转动拉曼激光雷达的光纤光栅分光技术研究?

J4 ›› 2013, Vol. 30 ›› Issue (1): 110-115.

全光纤转动拉曼激光雷达的光纤光栅分光技术研究?

李仕春，华灯鑫，宋跃辉，辛文辉，张爱

西安理工大学机械与精密仪器工程学院，陕西西安 710048

出版日期:2013-01-28 发布日期:2013-01-11
通讯作者: 华灯鑫 (1964- )浙江人, 博士, 教授,从事大气遥感探测技术及光电探测技术研究。 E-mail:dengxinhua@xaut.edu.cn
作者简介:李仕春 (1979- )山东人, 博士生, 从事大气温度激光雷达遥感探测研究. E-mail: lsczqz@ xaut.edu.cn
基金资助:
国家自然基金项目（NSFC）资助(60878050, 41027004)、陕西省教育厅自然研究计划项目资助（2010JK710）

Research on spectroscopic technique of fiber Bragg grating for all-fiber rotational Raman lidar

LI Shi-chun, HUA Deng-xin, SONG Yue-hui, XIN Wen-hui, ZHANG Ai

School of Mechanics and Fine Instrument Engineering, Xi'an University of Technology, Xi'an 710048, China

Published:2013-01-28 Online:2013-01-11

摘要/Abstract

摘要：

设计了一款由可见光波段的光纤布喇格光栅和光纤耦合器构建的全光纤转动拉曼激光雷达分光系统。利用相位掩模板侧向成功刻写530 nm波段光纤布喇格光栅，并初步测试其透射谱和反射谱性能。为提高光纤光栅中心波长与大气氮气分子转动拉曼谱线的匹配特性，利用悬臂梁设计高调谐灵敏度的调谐系统。实验结果表明，成功研制的可见光波段光纤布喇格光栅其反射率约为95%，带宽约为0.3 nm，应力调谐系统可实现± 0.6 nm范围18 pm/r 的波长调谐。

关键词: 遥感, 转动拉曼激光雷达, 全光纤分光系统, 光纤布喇格光栅, 悬臂梁调谐

Abstract:

An all-fiber rotational Raman lidar spectroscope constructed by fiber Bragg grating and fiber coupler in visible region is designed. The fiber Bragg grating with 530-nm central wavelength is successfully fabricated through phase mask directly inscribing, and then its transmissivity and reflectivity are experimentally tested. The high tuning sensitivity cantilever system is designed to enhance the matching performance between the central wavelength of fiber Bragg grating and the rotational Raman spectral line of atmosphere molecules. The experimental results show that the fiber Bragg grating in visible region successfully fabricated possesses 95% reflectivity and 0.3-nm full width at half maximum, and that the strain tuning system may possess sensitivity of 18 pm/r within the ± 0.6 nm range.

Key words: remote sensing, rotational Raman lidar, all-fiber spectroscope, fiber Bragg grating, cantilever tuning

李仕春，华灯鑫，宋跃辉，辛文辉，张爱. 全光纤转动拉曼激光雷达的光纤光栅分光技术研究?[J]. J4, 2013, 30(1): 110-115.

LI Shi-chun, HUA Deng-xin, SONG Yue-hui, XIN Wen-hui, ZHANG Ai. Research on spectroscopic technique of fiber Bragg grating for all-fiber rotational Raman lidar[J]. J4, 2013, 30(1): 110-115.

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