Improvement in the switch recovery time of a GaAs/GaAlAs multiple-quantum-well all-optical waveguide coupler

P. LiKamWa; A. Miller; J. S. Roberts; J. S. Roberts; P. N. Robson; P. N. Robson

Conference on Lasers and Electro-Optics
OSA Technical Digest (Optica Publishing Group, 1991),
paper CTuW62

Improvement in the switch recovery time of a GaAs/GaAlAs multiple-quantum-well all-optical waveguide coupler

P. LiKamWa, A. Miller, J. S. Roberts, and P. N. Robson

Conference on Lasers and Electro-Optics 1991

Baltimore, Maryland United States
12–17 May 1991
ISBN: 1-55752-189-1

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Poster Session (CTuW)

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P. LiKamWa, A. Miller, J. S. Roberts, and P. N. Robson, "Improvement in the switch recovery time of a GaAs/GaAlAs multiple-quantum-well all-optical waveguide coupler," in Conference on Lasers and Electro-Optics, J. Bufton, A. Glass, T. Hsu, and W. Krupke, eds., Vol. 10 of OSA Technical Digest (Optica Publishing Group, 1991), paper CTuW62.

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Abstract

We have recently demonstrated all-optical switching of picosecond pulses in a zero-gap directional coupler containing GaAs quantum wells,¹ The mechanism for the all-optical switch is believed to emanate from the effect of photo-generated carriers on the position of the absorption edge and file screening of the excitons, which combine to give an intensity-dependent refractive index.

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