Compact Long-Period Fiber Gratings Based on Periodic Microchannels

Compact Long-Period Fiber Gratings Based on Periodic Microchannels
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基于周期性微通道的紧凑型长周期光纤光栅

DOI:
10.1109/lpt.2012.2227701
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发表时间:
2013
影响因子:
2.6
通讯作者:
Sun, Hong-Bo
Sun, Hong-Bo
中科院分区:
工程技术3区
文献类型:
--
作者:
Guo, Jing-Chun;Yu, Yong-Sen;Xue, Yang;Chen, Chao;Yang, Rui;Wang, Chuang;Chen, Qi-Dai;Sun, Hong-Bo

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提出了一种基于周期性微通道的长周期光纤光栅(LPFGs)的形成方法,该方法利用飞秒激光微加工和选择性化学腐蚀在普通单模光纤中形成LPFGs。这种光栅可以短至仅3 mm,并且在30 °C至120°C范围内表现出9.95 pm/°C的低温灵敏度。谐振波长和峰值损耗的应变灵敏度分别为-2.4nm/mε和-3.5dB/mε。在折射率为1.33附近,普通单模光纤具有比传统长周期光纤光栅高一个数量级的折射率灵敏度。
A novel formation method of long-period fiber gratings (LPFGs) based on periodic microchannels, which are fabricated by femtosecond laser micromachining and selective chemical etching in conventional single-mode fibers, is proposed and experimentally demonstrated. This kind of grating may be as short as only 3 mm and exhibits low-temperature sensitivity of 9.95 pm/°C from 30 °C to 120°C. The strain sensitivities of the resonant wavelength and peak loss are -2.4 nm/mε and -3.5 dB/mε, respectively. High refractive-index (RI) sensitivity with one order of magnitude larger than that of the conventional LPFGs near RI=1.33 is achieved in general single-mode fibers.
具有二阶衍射共振的紧凑型长周期光纤光栅
DOI: 10.1109/lpt.2012.2204243
发表时间: 2012-08-15
影响因子: 2.6
作者:
Guo, Jing-Chun;Yu, Yong-Sen;Sun, Hong-Bo
通讯作者: Sun, Hong-Bo
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