High-sensitivity strain sensor based on inflated long period fiber grating Zhong, Xiaoyong ; Wang, Yiping ; Qu, Junle ; Liao, Changrui ; Liu, Shen ; Tang, Jian ; Wang, Qiao ; Zhao, Jing ; Yang, Kaiming ; Li, Zhengyong Abstract Publication: Optics Letters Pub Date: September 2014 DOI: 10.1364/OL.39.005463 Bibcode: 2014OptL...39.5463Z