Erman Engin, Damien Bonneau, Chandra M. Natarajan, Alex Clark, M. G. Tanner, R. H. Hadfield, Sanders N. Dorenbos, Val Zwiller, Kazuya Ohira, Nobuo Suzuki, Haruhiko Yoshida, Norio Iizuka, Mizunori Ezaki, Jeremy L. O'Brien, Mark G. Thompson
We experimentally demonstrate photon pair generation through spontaneous four-wave mixing in a silicon micro-ring resonator. We report a coincidence-to-accidental (CAR) ratio of 456\pm18 using the full width half maximum of the coincidence histogram as the integration window. In order to overcome the free-carrier related performance degradation we have investigated reverse biasing the ring. We show that this method improves the pair generation rate by a factor of up to 2.1.
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http://arxiv.org/abs/1204.4922
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