Multi-resonance peaks fiber Bragg gratings based on largely-chirped structure
Multi-resonance peaks fiber Bragg gratings based on largely-chirped structure
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基于大啁啾结构的多共振峰光纤布拉格光栅
DOI：
10.1016/j.optcom.2017.12.004
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发表时间：
2018-04-01
影响因子：
2.4
通讯作者：
Yu, Yong-Sen
中科院分区：
文献类型：
--
作者：
Chen, Chao;Zhang, Xuan-Yu;Yu, Yong-Sen
利用飞秒激光在单模光纤中逐点刻写的方法，实现了具有多共振峰的复合光纤Bragg光栅。该装置包括一段具有超高啁啾系数的大啁啾光栅和一段均匀的高阶光栅。在1200~1700 nm的超宽带波长范围内，观测到的MRP以准周期或多峰群的形式分布。对于8阶MRPS-FBG，我们实验研究了不同谐振峰的轴向应变和高温传感特性。此外，我们还利用9阶MRPS-FBG作为波长选择器，实现了三波长稳定输出的多波长光纤激光器。这项工作对复杂光谱特性的FBG的制作和功能化具有重要意义。(C)2017爱思唯尔B.V.保留所有权利。
A composite fiber Bragg grating (FBG) with multi-resonance peaks (MRPs) has been realized by using femtosecond (fs) laser point-by-point inscription in single-mode fiber. This device contains a segment of largely-chirped gratings with the ultrahigh chirp coefficients and a segment of uniform high-order gratings. The observed MRPs are distributed in an ultra-broadband wavelength range from 1200 nm to 1700 nm in the form of quasi-period or multi-peak-group. For the 8th-order MRPs-FBG, we studied the axial strain and high-temperature sensing characteristics of different resonance peaks experimentally. Moreover, we have demonstrated a multi-wavelength fiber lasers with three-wavelength stable output by using a 9th-order MRPs-FBG as the wavelength selector. This work is significant for the fabrication and functionalization of FBGs with complicated spectra characteristics. (C) 2017 Elsevier B.V. All rights reserved.