| 高频CO2激光脉冲写入的掺硼长周期光纤光栅温度应变特性 |
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| 引用本文： | 刘兴晨,饶云江,冉增令,汪文华.高频CO2激光脉冲写入的掺硼长周期光纤光栅温度应变特性[J].河南师范大学学报(自然科学版),2011,39(3):43-46. |
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| 作者姓名： | 刘兴晨 饶云江 冉增令 汪文华 |
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| 作者单位： | 电子科技大学,光纤传感与通信教育部重点实验室,成都610054 |
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| 摘 要： | 高频CO2激光脉冲写入的长周期光纤光栅(LPFG)对温度比较敏感、应变不敏感,通常应用在温度传感器做温度测量.普通长周期光纤光栅温度灵敏度只有0.052 nm·℃-1,而用掺硼光纤制作的长周期光纤光栅温度灵敏度达到0.171 nm·℃-1,比普通长周期光纤光栅更加灵敏.因而应用在温度传感提高了传感器的灵敏度以及测温精度...
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| 关 键 词： | B-Ge光纤 长周期光纤光栅 光纤传感 温度特性 应变特性 |
Temperature and Strain Characteristic of Long Period Fiber Grating (LPFG) Induced by High Frequency CO2 Laser Pulses |
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| LIU Xing-chen,RAO Yun-jiang,RAN Zeng-ling,WANG Wen-hua.Temperature and Strain Characteristic of Long Period Fiber Grating (LPFG) Induced by High Frequency CO2 Laser Pulses[J].Journal of Henan Normal University(Natural Science),2011,39(3):43-46. |
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| Authors: | LIU Xing-chen RAO Yun-jiang RAN Zeng-ling WANG Wen-hua |
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| Institution: | (Key Lab of Optical Fiber Sensing & Communications(Ministry of Education),University of Electronic Science and Technology of China,Chengdu 610054,China) |
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| Abstract: | In this paper,temperature and strain characteristic of long period fiber grating(LPFG) induced by high frequency CO2 laser pulses is theoretically and experimentally studied.By the characteristic of higher temperature sensitivity and lower strain sensitivity,it is usually implemented as temperature sensor.The temperature sensitivity of B-doped LPFG is 0.171 nm·℃-1 while the temperature sensitivity of an ordinary LPFG is 0.052 nm·℃-1.Thus it can enhance the sensitivity and precision of temperature sensor. |
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| Keywords: | B-Ge fiber long period fiber grating temperature characteristic strain characteristic |
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