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投弃式光纤海洋温深传感器光路设计与优化

Design and Optimization of Optical-Path for Expendable Optical Fiber Ocean Temperature-Depth Sensor

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摘要

针对海洋剖面观测的需求和传统投弃式海洋温度剖面测量仪(XBT)存在的问题, 提出一种基于光纤布拉格光栅-长周期光纤光栅(FBG-LPG)级联结构的光纤海水温深剖面传感器(光纤XBT), 设计了传感器光路, 利用光纤端面反射镜简化了光路结构, 通过调整反射率优化了系统性能。实验表明, 当光纤端面反射率在48.8%~72.5%时, FBG和LPG的谐振峰相对强度较为合理, 整体光谱波形较好, 利于解调。

Abstract

Aiming at the requirements of oceanic profile observation and problems of traditional expendable bathythermograph(XBT), we propose a kind of optical fiber temperature-depth oceanic profile sensor based on fiber Bragg grating-long period fiber grating (FBG-LPG) cascaded structure (fiber XBT), and design and optimize the optical path by using the reflective optical fiber end mirror. The experimental results show that, when the end reflectivity of fiber is in the range from 48.8% to 72.5%, the resonant peaks of FBG and LPG are reasonable and the whole spectrum is suitable for demodulation.

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中图分类号:TN253

DOI:10.3788/lop55.060601

所属栏目:光纤光学与光通信

基金项目:国家自然科学基金(61405106,41406104)、国家重点研发计划(2017YFC1403303)、山东省重点研发计划(2017GHY215010,2016GGH4501)、山东省科学院青年基金(2014QN029, 2015QN026)、青岛市应用基础研究计划(17-1-1-99-jch)

收稿日期:2017-11-07

修改稿日期:2017-11-17

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作者单位    点击查看

赵强:齐鲁工业大学(山东省科学院)海洋仪器仪表研究所, 山东 青岛 266061
陈世哲:齐鲁工业大学(山东省科学院)海洋仪器仪表研究所, 山东 青岛 266061
吕日清:东北大学信息科学与工程学院, 辽宁 沈阳 110819
张继明:齐鲁工业大学(山东省科学院)海洋仪器仪表研究所, 山东 青岛 266061
张可可:齐鲁工业大学(山东省科学院)海洋仪器仪表研究所, 山东 青岛 266061
张丽:齐鲁工业大学(山东省科学院)山东省海洋仪器仪表科技中心, 山东 青岛 266061
丁园强:齐鲁工业大学(山东省科学院)山东省海洋仪器仪表科技中心, 山东 青岛 266061

联系人作者:赵强(zqhero9494@163.com)

备注:赵强(1982-), 男, 博士, 助理研究员, 主要从事光纤传感在海洋观测方面的研究。E-mail: zqhero9494@163.com

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引用该论文

Zhao Qiang,Chen Shizhe,Lü Riqing,Zhang Jiming,Zhang Keke,Zhang Li,Ding Yuanqiang. Design and Optimization of Optical-Path for Expendable Optical Fiber Ocean Temperature-Depth Sensor[J]. Laser & Optoelectronics Progress, 2018, 55(6): 060601

赵强,陈世哲,吕日清,张继明,张可可,张丽,丁园强. 投弃式光纤海洋温深传感器光路设计与优化[J]. 激光与光电子学进展, 2018, 55(6): 060601

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