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Semiconductor Waveguide Source of Counterpropagating Twin Photons

Lanco, L.
Ducci, S.
Likforman, J.-P.
Marcadet, X.
Leo, G.
Berger, V.
Published in Physical Review Letters. 2006, vol. 97, no. 17
Abstract We experimentally demonstrate an integrated semiconductor source of counterpropagating twin photons in the telecom range. A pump beam impinging on top of an AlGaAs waveguide generates parametrically two counterpropagating, orthogonally polarized signal/idler guided modes. A 2 mm long waveguide emits at room temperature one average photon pair per pump pulse, with a spectral linewidth of 0.15 nm. The twin character of the emitted photons is ascertained through a time-correlation measurement. This work opens a route towards new guided-wave semiconductor quantum devices.
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LANCO, L. et al. Semiconductor Waveguide Source of Counterpropagating Twin Photons. In: Physical Review Letters, 2006, vol. 97, n° 17. https://archive-ouverte.unige.ch/unige:36691

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Deposited on : 2014-05-19

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