Inscription of long period fiber gratings using 800 nm femtosecond laser

MIAO Fei; ZHANG Ling; FENG De-jun; SUI Qing-mei; CHEN Xiao; JIA Lei; LIU Han-ping; LIU Hui-

doi:10.3788/OPE.20122004.0685

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Inscription of long period fiber gratings using 800 nm femtosecond laser

Article | 更新时间：2020-08-12

- Inscription of long period fiber gratings using 800 nm femtosecond laser
- Optics and Precision Engineering Vol. 20, Issue 4, Pages: 685-691(2012)
- 作者机构：
  
  1. 山东大学控制科学与工程学院,山东济南,250061
  2. 山东大学信息科学与工程学院,山东济南,250100
  3. 德州学院物理系,山东德州,253023
- 作者简介：
- 基金信息：
- DOI：10.3788/OPE.20122004.0685
  CLC： TN253;TN305.7
- Received：19 October 2011，
  
  Revised：12 December 2011，
  
  Published Online：22 April 2012，
  
  Published：22 April 2012
- 稿件说明：
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苗飞, 张玲, 冯德军, 隋青美, 陈霄, 贾磊, 刘汉平, 刘辉兰. 应用800 nm飞秒激光制备长周期光纤光栅[J]. 光学精密工程, 2012,(4): 685-691

MIAO Fei, ZHANG Ling, FENG De-jun, SUI Qing-mei, CHEN Xiao, JIA Lei, LIU Han-ping, LIU Hui-lan. Inscription of long period fiber gratings using 800 nm femtosecond laser[J]. Editorial Office of Optics and Precision Engineering, 2012,(4): 685-691
苗飞, 张玲, 冯德军, 隋青美, 陈霄, 贾磊, 刘汉平, 刘辉兰. 应用800 nm飞秒激光制备长周期光纤光栅[J]. 光学精密工程, 2012,(4): 685-691 DOI： 10.3788/OPE.20122004.0685.

MIAO Fei, ZHANG Ling, FENG De-jun, SUI Qing-mei, CHEN Xiao, JIA Lei, LIU Han-ping, LIU Hui-lan. Inscription of long period fiber gratings using 800 nm femtosecond laser[J]. Editorial Office of Optics and Precision Engineering, 2012,(4): 685-691 DOI： 10.3788/OPE.20122004.0685.

摘要

利用800 nm钛蓝宝石飞秒激光器制备了长周期光纤光栅

并实验验证了长周期光纤光栅的高温特性。基于摄像头和电动位移平台设计了激光精确对准光纤纤芯的方案;以计算机控制1.3 mW飞秒激光

使用逐点曝光法在未经载氢处理的光纤上刻写了长周期光纤光栅

实验显示该光栅在1 200~1 700 nm波段的主谐振峰值可达-17 dB。利用高温箱对长周期光纤光栅进行高温传感特性实验

在300~800 ℃得到的主谐振峰温度响应灵敏度为0.056 nm/℃

线性度为0.992。实验结果表明

提出的以800 nm钛蓝宝石飞秒激光器制备长周期光纤光栅的方法稳定可靠

写制的光栅在高温环境下变化均匀

不易退化

响应特性良好

适用于高温检测。

Abstract

Long Period Fiber Gratings(LPFGs) were inscribed by using a 800 nm femtosecond laser and their high-temperature properties were verified in this paper. Firstly

an inscription system for the laser into fiber cores was designed using a camera and an electric moving platform. With controlling a pulse laser of 1.3 mW

a LPFG was inscribed in a non-hydrogen-loaded bare fiber using point by point technique

and the resonant peak of the LPFG is about -17 dB in the 1 200~1 700 nm band. Then

high temperature sensing experiments were performed on the LPFG by a high temperature box

obtained results show that the linearity of the resonance peak changes is about 0.992 and temperature sensitivity is 0.056 nm/℃ at 300-800 ℃. It demonstrates that the inscription technology for LPFGs by using the 800 nm femtosecond laser is feasible and obtained LPFGs have good response characteristics and stability

and are suitable for the high-temperature measurement.

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Keywords

references

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