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Type: Journal article
Title: High-efficiency cross-phase modulation in a gas-filled waveguide
Author: Perrella, C.
Light, P.
Anstie, J.
Benabid, F.
Stace, T.
White, A.
Luiten, A.
Citation: Physical Review A, 2013; 88(1):1-5
Publisher: American Physical Soc
Issue Date: 2013
ISSN: 1050-2947
Organisation: Institute for Photonics & Advanced Sensing (IPAS)
Statement of
C. Perrella, P. S. Light, J. D. Anstie, F. Benabid, T. M. Stace, A. G. White, and A. N. Luiten
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 π rad with a signal power of 25 μW, corresponding to a nonlinear Kerr coefficient, n₂, of 0.8×10⁻⁶ cm²/W, or 1.3×10⁻⁶ rad per photon.
Rights: ©2013 American Physical Society
RMID: 0020130775
DOI: 10.1103/PhysRevA.88.013819
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Appears in Collections:IPAS publications

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