A 1.5 μm single-photon detector, which combines up-conversion in a PPLN waveguide with a silicon avalanche photodiode, is used to demonstrate photon-counting OTDR. The system exhibits good sensitivity, high spatial resolution and small measurement time.
Published in:
Lasers and Electro-Optics, 2005. (CLEO). Conference on
(Volume:2
)
Date of Conference: 22-27 May 2005