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Estimation of parametric gain in GaAs/AlOx waveguides by fluorescence and second harmonic generation measurements

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7 Author(s)
Ravaro, M. ; Laboratoire Matériaux et Phénomènes Quantiques, CNRS-UMR 7162, Université Paris-Diderot, Case Courrier 7021, 75205 Paris Cedex 13, France ; Le Du, M. ; Likforman, J.-P. ; Ducci, S.
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Efficient parametric fluorescence is obtained from a pump wavelength λ=1.06 μm in low-loss, form-birefringent GaAs/AlOx waveguides. Besides showing a 1 μm wide tuning range and the onset of amplification regime for continuous-wave pump levels around 50 mW, an 8% parametric gain is determined. This is the highest figure reported to date in semiconductor waveguides, and confirms GaAs/AlOx waveguides as a candidate for an integrated parametric optical source.

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Applied Physics Letters  (Volume:91 ,  Issue: 19 )