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Long-range OTDR for single-mode optical fibre using a P2O5 highly doped fibre Raman laser

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3 Author(s)
Suzuki, K. ; NTT Electrical Communications Laboratories, Tokai, Japan ; Noguchi, K. ; Uesugi, N.

A wide-dynamic-range single-mode optical time-domain reflectometer using a P2O5 highly doped fibre Raman laser and a cooled Ge-PIN photodiode has been realised for the first time. The maximum detectable one-way loss was improved to 35dB in the 1.5 ¿m wavelength band.

Published in:

Electronics Letters  (Volume:22 ,  Issue: 24 )