Strain Characteristics of Long Period Fiber Gratings Written by Femtosecond Lasers
LU Jun-hui,SHI Jie-long,CHEN Yuan-yuan,SUN Wei-sheng
Journal of Shanghai University(Natural Science Edition) . 2012, (4): 379 -383 .  DOI: 10.3969/j.issn.1007-2861.2012.04.010