Wide range distance measurement over 50 km based on high-sensitive detection of two-photon absorption photocurrent from Si-APD
Wide range distance measurement over 50 km based on high-sensitive detection of two-photon absorption photocurrent from Si-APD
复制标题
基于Si-APD双光子吸收光电流高灵敏检测的50公里以上大范围距离测量
DOI:
10.1088/0957-0233/26/2/025205
复制
发表时间:
2015
影响因子:
2.4
通讯作者:
and Takashi Kurokawa
中科院分区:
文献类型:
--
作者:
Yosuke Tanaka;Yoshimi Kudo;Taiki Hirasakura;and Takashi Kurokawa
We studied a wide range distance measurement system based on highly sensitive detection of the two-photon absorption photocurrent from a Si-APD. The measurable distance was investigated theoretically and experimentally in detail. The experimental results agreed well with the theory. We demonstrated fiber fault location over a 50 km fiber. Breakpoints from 20 m to 50 km away in the optical fiber were successfully detected.