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24 January 2011 Semiconductor integrated sources of quantum light at room temperature
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In the last few years considerable effort has been devoted to the miniaturization of quantum information technology on semiconductor chips; in addition, recent developments in quantum information theory have roused a growing interest in 'generalized' states of frequency correlation. Parametric generation in semiconductor waveguides allows roomtemperature operation in the telecom range. We propose and compare some microcavity-based schemes for the generation of counterpropagating photon pairs and we experimentally demonstrate a bright source emitting 1.2 × 10-11pairs/pump photon for a 1.8 mm long waveguide. The indistiguishability of the photons of the pair is measured via a Hong-Ou-Mandel two-photon interference experiment showing a visibility of 85 %. The versatility of the source to control the generated two-photon state is also discussed.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
A. Orieux, A. Lemaître, P. Filloux, I. Favero, G. Leo, and S. Ducci "Semiconductor integrated sources of quantum light at room temperature", Proc. SPIE 7945, Quantum Sensing and Nanophotonic Devices VIII, 79452J (24 January 2011);


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