Semiconductor waveguides for optical switching

Suzanne Laval

doi:10.1117/12.24512

1 February 1991 Semiconductor waveguides for optical switching

Suzanne Laval

Proceedings Volume 1362, Physical Concepts of Materials for Novel Optoelectronic Device Applications II: Device Physics and Applications; (1991) https://doi.org/10.1117/12.24512
Event: Physical Concepts of Materials for Novel Optoelectronic Device Applications, 1990, Aachen, Germany

Abstract

Nonlinear semiconductor waveguides are investigated with respect to their use for optical bistability and temporal optical switching with results given for silicon-on-sapphire devices. The performance of the waveguides is assessed with comparisons to nonlinear Fabry-Perot cavities, and the conditions for optical bistability are theoretically shown to be possible by combining a waveguide and a diffraction-grating coupler. Structures experimentally investigated include semiconductor layers epitaxially grown on substrates having low refractive indices. Optical switching is reported on reflected or transmitted beams and on the guided-wave intensity by means of excitation pulses in the nanosecond or picosecond range. The data confirm the usefulness of nonlinear waveguides as alternative devices for temporal optical switching and logic-gate development in part due to their good switching times.

Citation Download Citation

Suzanne Laval "Semiconductor waveguides for optical switching", Proc. SPIE 1362, Physical Concepts of Materials for Novel Optoelectronic Device Applications II: Device Physics and Applications, (1 February 1991); https://doi.org/10.1117/12.24512

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