High-efficiency cross-phase modulation in a gas-filled waveguide

Abstract : Strong cross-Kerr nonlinearities have been long sought after for quantum information applications. Recent work has shown that they are intrinsically unreliable in traveling-wave configurations: cavity configurations avoid this, but require knowledge of both the nonlinearity and the loss. Here we present a detailed systematic study of cross-phase modulation and absorption in an Rb vapor confined within a hollow-core photonic crystal fiber. Using a two-photon transition, we observe phase modulations of up to 휋 rad with a signal power of 25 휇W, corresponding to a nonlinear Kerr coefficient, 푛2, of 0.8×10−6 cm2/W, or 1.3×10−6 rad per photon.
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https://hal-unilim.archives-ouvertes.fr/hal-00925053
Contributeur : Frédéric Gerome <>
Soumis le : mardi 7 janvier 2014 - 14:51:04
Dernière modification le : mardi 16 janvier 2018 - 17:56:01

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  • HAL Id : hal-00925053, version 1

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C. Perrella, P. Light, James Anstie, Fetah A. Benabid, Thomas Stace, et al.. High-efficiency cross-phase modulation in a gas-filled waveguide. Physical Review A, American Physical Society, 2013, 88 (1), pp.013819-1. ⟨hal-00925053⟩

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