Photon counts modulation in optical time domain reflectometry
Wang Xiao-Bo(王晓波), Wang Jing-Jing(王晶晶), Zhang Guo-Feng(张国锋), Xiao Lian-Tuan(肖连团), and Jia Suo-Tang(贾锁堂)
Chin. Phys. B . 2011, (6): 64204 -064204 .  DOI: 10.1088/1674-1056/20/6/064204