Optical frequency domain reflectometry with a narrow linewidth fiber laser

Optical frequency domain reflectometry with a narrow linewidth fiber laser

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, wit...

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Veröffentlicht in:IEEE photonics technology letters 2000-07, Vol.12 (7), p.867-869
Hauptverfasser: Oberson, P., Huttner, B., Guinnard, O., Guinnard, L., Ribordy, G., Gisin, N.
Format: Artikel
Sprache:eng
Schlagworte:
Dynamic range
Fiber lasers
Frequency domain analysis
Instruments
Noise levels
Optical frequency
Optical sensors
Performance evaluation
Photonics
Reflectivity
Reflectometers
Reflectometry
Spatial resolution
Tunable circuits and devices
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Beschreibung
Zusammenfassung: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.
ISSN:1041-1135
1941-0174
DOI:10.1109/68.853529