可调谐长周期光子晶体光纤光栅压力传感的实验研究  

Study on sensing characteristics of tunable long-period gratings imprinted by mechanical pressure in photonic crystal fiber

作　　者：侯尚林[1,2] 韩佳巍[1] 张睿睿[2] 黄永清[2] 张霞[2] 任晓敏[2] 

机构地区：[1]兰州理工大学理学院,甘肃兰州730050 [2]北京邮电大学教育部光通信与光波技术重点实验室,北京100876

出　　处：《光电子．激光》2010年第1期5-8,共4页Journal of Optoelectronics·Laser

基　　金：国家重点基础研究发展计划"973"资助项目(2003CB314906);兰州理工大学博士启动基金;优秀青年教师培养计划资助项目

摘　　要：采用超连续谱做宽带光源和金属丝施加周期性压力,在高非线性光子晶体光纤(HNL-PCF)上产生了长周期光纤光栅(PLPG),测定了脉冲透射谱峰值和压力的关系。实验表明,在20～60N范围内,压力和透射谱峰值的线性度达到0.9953,灵敏度达到0.5dB/N。A long-period grating in photonic crystal fiber was imprinted by mechanical pressure using flat broadband supercontinuum as light source and periodic metal wires on which tunable period can be produced,and the relationship of the depth of pulse transmitted spectrum and the pressure was investigated.The experimental results show that when the pressure varies between 20 and 60 N,the linearity degree of the pressure-transmission peak attenuation curve is as much as 0.995 3 and the sensitivity is 0.5 dBm/N.

关 键 词：压力传感 机械压力法 光子晶体光纤光栅(PCFG) 

分 类 号：TN253[电子电信—物理电子学]