Effective Kerr nonlinearity and two-color solitons in photonic band-gap fibers filled with a Raman active gas.
We predict a strong effective Kerr nonlinearity in hollow-core photonic crystal fibers filled with a Raman active gas which exceeds the intrinsic Kerr nonlinearity by 2 orders of magnitude. Two-color bright-bright and dark-bright solitons supported by this nonlinearity are found and the feasibility of their experimental observation is demonstrated.
Skryabin
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DV
Department of Physics, University of Bath, Bath BA2 7AY, United Kingdom.
Biancalana
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Bird
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Benabid
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