Title :
Ultrahigh-sensitivity low coherence OTDR using Er3+-doped high-power superfluorescent fibre source
Author :
Takada, K. ; Shimizu, M. ; Yamada, M. ; Horiguchi, M. ; Himeno, A. ; Yukimatsu, K.
Author_Institution :
Optoelectron. Labs., NTT Corp., Ibaraki, Japan
Abstract :
The first-known demonstration of an Er3+-doped superfluorescent fibre source coupled to a high-resolution OTDR based on low coherence interference (low coherence OTDR) is reported. Linearly-polarised light with 14 mW output from the source achieves a -146 dB minimum detectable reflectivity at 3 Hz bandwidth. The spatial resolution determined by spectral FWHM is 28 mu m for silica-based waveguides.
Keywords :
erbium; fibre optics; light sources; optical fibres; optical variables measurement; superradiance; time-domain reflectometry; 14 mW; 3 Hz; Er 3+ doped fibre; OTDR; high-power; high-resolution; linearly polarised light; low coherence interference; optical time domain-reflectometry; silica-based waveguides; superfluorescent fibre source; ultrahigh sensitivity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19920018
