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Parametric amplification in GaAs/AlOx waveguide

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8 Author(s)
Guillotel, E. ; Laboratoire Matériaux et Phénomènes Quantiques, CNRS-UMR 7162, Université Paris Diderot, Case Courrier 7021, 75205 Paris Cedex 13, France ; Ravaro, M. ; Ghiglieno, F. ; Langlois, C.
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We report the direct proof of parametric amplification in a semiconductor waveguide. Thanks to low propagation losses and high nonlinear efficiency, we amplified an input signal at 2 μm in a selectively oxidized GaAs/AlAs multilayer waveguide through the down conversion of a pump at 1 μm. The 4.5% single-pass gain measured for a 30 mW cw pump is compatible with parametric oscillation, provided that distributed and concentrated waveguide losses are further reduced.

Published in:

Applied Physics Letters  (Volume:94 ,  Issue: 17 )