The effect of UV irradiation duty cycle on the 2nd harmonic coupling efficiency in optical fiber long period gratings
The effect of UV irradiation duty cycle on the 2nd harmonic coupling efficiency in optical fiber long period gratings
复制标题
紫外辐照占空比对光纤长周期光栅二次谐波耦合效率的影响
DOI：
10.1016/j.optlastec.2018.07.029
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发表时间：
2019
影响因子：
5
通讯作者：
Barrington J
中科院分区：
文献类型：
--
作者：
Barrington J
长周期光栅（LPG）作为一种传感平台，通过利用二阶耦合谐振带具有多参数测量的潜力。虽然目前的文献已经产生了具有第二阶谐振带的LPG，但是还没有阐明产生这些特征所需的制造参数。在这里，通过逐点方法使用UV照射，示出了通过改变占空比，可以制造表现出第2、第3和第4阶耦合谐振带的LPG。具有25%或75%占空比的LPG的制造产生明显的第二阶谐振带，当采用50%占空比时未观察到。
Long period gratings (LPGs) as a sensing platform have the potential for multi-parameter measurement through the utilization of 2nd order coupling resonance bands. Although the current literature has produced LPGs with 2nd order resonance bands, the fabrication parameters required to generate these features have not been elucidated. Here, using UV irradiation via the point-by-point method, it is shown that by varying the duty cycle it is possible to fabricate LPGs that exhibit 2nd, 3rd, and 4th order coupling resonance bands. Fabrication of LPGs with a 25% or 75% duty cycle produces distinct 2nd order resonance bands, which are not observed when a 50% duty cycle is adopted.
具有温度/应变辨别功能的 Ge-B 共掺光纤长周期光纤光栅温度传感器
影响因子：
1.5
作者：
T. Mizunami;Yoshihito Ishida;Shirou Yoshikura
通讯作者：
Shirou Yoshikura
影响因子：
3.8
作者：
Partridge, Matthew;James, Stephen W.;Tatam, Ralph P.
通讯作者：
Tatam, Ralph P.
使用长周期光栅的一阶和二阶衍射区分应变和温度效应
影响因子：
2.4
作者：
T. Allsop;Lin Zhang;D. Webb;I. Bennion
通讯作者：
I. Bennion