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  • International Quantum Electronics Conference
  • OSA Technical Digest (Optica Publishing Group, 1994),
  • paper QTuO3

Three-photon absorption limitation of the useful spectral range for nonlinear optics in AIGaAs below half band gap

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Abstract

In AIGaAs all-optical switching devices, when operated at wavelengths too far below half the band gap, three-photon absorption appears to become a limiting factor for all-optical switching.1 In this work, we show using the two-parabolic-band model and experimental results that there is only a limited spectral range below half the bandgap in AIGaAs (and presumably all semiconductors) in which the bound electronic optical nonlinearity can be used without significant multiphoton absorption.

© 1994 Optical Society of America

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