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Photon timing OTDR: a multiphoton backscattered pulse approach

1990; Institution of Engineering and Technology; Volume: 26; Issue: 19 Linguagem: Inglês

10.1049/el

1350-911X

G. Ripamonti, Massimo Ghioni, S. Vanoli,

Spectroscopy Techniques in Biomedical and Chemical Research

Time-correlated photon counting with solid state detectors is of considerable interest for high resolution optical time-domain reflectometry (OTDR). Up to now long measurement times were required. A new approach is described, yielding measurement times 50 times shorter and dynamic range enhanced by ≈ 20dB