Title :
OTDR in a 147 km single-mode fibre in 1.55 μm wavelength region using an LD and GaInAs/InP APD at room temperature
Author :
Namihira, Yoshinori ; Horiuchi, Yoichiro ; Wakabayashi, H. ; Oshimi, T. ; Kitagawa, Koichiro ; Ooka, T.
Author_Institution :
KDD Meguro Research & Development Laboratories, Tokyo, Japan
Abstract :
A Rayleigh backscattered signal over 147.7 km of single-mode optical fibre has been observed for the first time by long-range, optical time-domain reflectometry (OTDR) using a 1.54 μm high-power semiconductor laser (LD) and a GaInAs/InP APD with a small dark current at room temperature. A one-way backscattered dynamic range of 29.3 dB at room temperature has been achieved.
Keywords :
III-V semiconductors; Rayleigh scattering; avalanche photodiodes; gallium arsenide; indium compounds; optical fibres; semiconductor junction lasers; time-domain reflectometry; 1.55 micron; 147 km; APD; GaInAs-InP; LD; OTDR; Rayleigh backscattered signal; dark current; high-power semiconductor laser; optical time-domain reflectometry; room temperature; semiconductor; single-mode optical fibre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870849
