光学精密工程2012，Vol.20Issue(4)：685-691,7.DOI:10.3788/OPE.20122004.0685
应用800nm飞秒激光制备长周期光纤光栅
Inscription of long period fiber gratings using 800 nm femtosecond laser
摘要
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 1200 - 1700 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 responsecharacteristics and stability, and are suitable for the high-temperature measurement.关键词
长周期光纤光栅/飞秒激光/光栅制备/高温传感Key words
long period fiber grating/femtosecond laser/grating inscription/high-temperature sensing分类
信息技术与安全科学引用本文复制引用
苗飞,张玲,冯德军,隋青美,陈霄,贾磊,刘汉平,刘辉兰..应用800nm飞秒激光制备长周期光纤光栅[J].光学精密工程,2012,20(4):685-691,7.基金项目
国家自然科学基金资助项目(No.61074163) （No.61074163）
山东省高校科研发展计划资助项目(No.J10LA54) （No.J10LA54）
