Title :
Optical frequency domain reflectometry with a narrow linewidth fiber laser
Author :
Oberson, P. ; Huttner, B. ; Guinnard, O. ; Guinnard, L. ; Ribordy, G. ; Gisin, N.
Author_Institution :
Group of Appl. Phys., Geneva Univ., Switzerland
fDate :
7/1/2000 12:00:00 AM
Abstract :
The present a new optical frequency domain reflectometer based on a tunable fiber laser with a very narrow linewidth (about 10 kHz). This instrument performs reflectivity measurements with -110 dB sensitivity and 80 dB dynamic range. The narrow linewidth allows long-range measurements, at 150 m, with a spatial resolution of 16 cm. At short range, about 5 m, the resolution increases to subcentimeter.
Keywords :
fibre lasers; laser tuning; measurement by laser beam; optical fibre communication; optical fibre testing; optical resolving power; reflectometry; spectral line breadth; 150 m; dB dynamic range; dB sensitivity; long-range measurements; narrow linewidth; narrow linewidth fiber laser; optical frequency domain reflectometer; optical frequency domain reflectometry; reflectivity measurements; spatial resolution; subcentimeter resolution; tunable fiber laser; very narrow linewidth; Dynamic range; Fiber lasers; Frequency domain analysis; Instruments; Optical sensors; Performance evaluation; Reflectivity; Reflectometry; Spatial resolution; Tunable circuits and devices;
Journal_Title :
Photonics Technology Letters, IEEE
