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Generation of correlated photon pairs in a chalcogenide As2S3 waveguide

Wed, 2011-03-30 23:19 - Q-Essence Coordinator
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Date: 
2011-01-31
Author(s): 

C. Xiong, G. D. Marshall, A. Peruzzo, M. Lobino, A. S. Clark, D.-Y. Choi, S. J. Madden, C. M. Natarajan, M. G. Tanner, R. H. Hadfield, S. N. Dorenbos, T. Zijlstra, V. Zwiller, M. G. Thompson, J. G. Rarity, M. J. Steel, B. Luther-Davies, B. J. Eggleton, and J. L. O’Brien

Reference: 

Appl. Phys. Lett. 98, 051101 (2011); doi:10.1063/1.3549744

URL: 

http://apl.aip.org/resource/1/applab/v98/i5/p051101_s1?isAuthorized=no

We demonstrate a 1550 nm correlated photon-pair source in an integrated glass platform—a chalcogenide As2S3 waveguide. A measured pair coincidence rate of 80 s−1 was achieved using 57 mW of continuous-wave pump. The coincidence to accidental ratio was shown to be limited by spontaneous Raman scattering effects that are expected to be mitigated by using a pulsed pump source.