Title :
Spatial-resolution improvement in long-range coherent optical frequency domain reflectometry by frequency-sweep linearisation
Author :
Tsuji, K. ; Shimizu, K. ; Horiguchi, T. ; Koyamada, Y.
Author_Institution :
NTT Access Network Syst. Labs., Ibaraki, Japan
fDate :
2/27/1997 12:00:00 AM
Abstract :
The authors demonstrate long-range coherent optical frequency domain reflectometry (C-OFDR) with an auxiliary feedback-control circuit to linearise frequency sweep. They successfully suppress the sweep nonlinearity, and achieve spatial resolutions of 14 cm and 50 m, respectively, at the far ends of 1 and 30 km optical fibres
Keywords :
optical resolving power; feedback-control circuit; frequency-sweep linearisation; long-range coherent optical frequency domain reflectometry; optical fibre; spatial resolution;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19970238
