Japanese Journal of Applied Physics

Two-photon Interference at 1550 nm Using Two Periodically Poled Lithium Niobate Waveguides

Akio Yoshizawa, Ryosaku Kaji, Hidemi Tsuchida

Published Sep 15, 2003• 3 citations

Abstract

We have observed two-photon interference at 1550 nm using two periodically poled lithium niobate waveguides. Two indium-gallium-arsenide gated-mode single-photon detectors were used for coincidence detection. The measured visibility was 95% (after subtraction of accidental coincidences) with a coincidence detection rate of 0.8 kHz. The ratio of single-photon to coincidence detection rate was 30.

DOI: 10.1143/jjap.42.5652

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