Title
Ultrafast All-Optical Switching In Semiconductor Nonlinear Directional-Couplers At Half The Band-Gap
Abbreviated Journal Title
Appl. Phys. Lett.
Keywords
2-Photon Absorption; Limitation; Physics; Applied
Abstract
Efficient ultrafast all-optical switching in nonlinear directional couplers made of AlGaAs and AlGaAs/GaAs quantum wells near half the band gap is reported. The switching is limited by multiphoton absorption which is dominated by three-photon absorption in this spectral range. The three-photon absorption in the quantum well nonlinear directional coupler is stronger than that of bulk AlGaAs. Autocorrelations of the output pulses in the bar and cross states confirm pulse breakup through nonlinear coupling, and illustrate the effects of multiphoton absorption. All sets of experimental data are fitted well by a theoretical model.
Journal Title
Applied Physics Letters
Volume
61
Issue/Number
2
Publication Date
1-1-1992
Document Type
Article
DOI Link
Language
English
First Page
147
Last Page
149
WOS Identifier
ISSN
0003-6951
Recommended Citation
Villeneuve, A.; Yang, C. C.; Wigley, P. G. J.; Stegeman, G. I.; Aitchison, J. S.; and Ironside, C. N., "Ultrafast All-Optical Switching In Semiconductor Nonlinear Directional-Couplers At Half The Band-Gap" (1992). Faculty Bibliography 1990s. 595.
https://stars.library.ucf.edu/facultybib1990/595
Comments
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"This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in the linked citation and may be found originally at Applied Physics Letters."