A Low-Cost High-Temperature Sensor Based on Long-Period Fiber/Microfiber Gratings by Local Fictive Temperature Modification
A Low-Cost High-Temperature Sensor Based on Long-Period Fiber/Microfiber Gratings by Local Fictive Temperature Modification
复制标题
基于局部假想温度修正的长周期光纤/微光纤光栅的低成本高温传感器
DOI:
10.1155/2020/9076874
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发表时间:
2020-06
影响因子:
3
通讯作者:
Lv Haibing
中科院分区:
文献类型:
--
作者:
Zhou Guorui;Zhang Chuanchao;Xie Xiufang;Wan Yi;Yao Caizhen;Liu Jun;Niu Longfei;Miao Xinxiang;Zhou Hai;Jiang Xiaodong;Xu Shizhen;Lv Haibing
A high temperature-sensitive long-period fiber grating (LPFG) sensor fabricated by the local fictive temperature modification is proposed and demonstrated. High-frequency CO2 laser pulses scan standard single-mode fiber (SMF), and the modification zones extended to the core of SMF. Experimental results demonstrate that the LPFG temperature sensors with 600 μm grating period and 32 period numbers offer the average sensitivity of 0.084 nm/C in the temperature range of room temperature (RM) to 875°C. The LPFGs fabricated here show exponential change in terms of the spectral wavelength shift versus changes in temperature. In addition, the maximum temperature sensitivity of 0.37 nm/C is achieved by employing long-period microfiber grating (LPMFG), fabricated by the microheater brushing technique and the local fictive temperature modification. LPMFG sensor exhibits better temperature characteristics due to a thinner diameter.
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影响因子:
4.3
作者:
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通讯作者:
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Yariv, A
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