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Proceedings Paper

All-optical switching of picosecond pulses in GaAs MQW waveguides
Author(s): Patrick LiKamWa; Choong-Bum Park; Alan Miller
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Paper Abstract

All-optical switching has been achieved in zero-gap directional couplers containing either a single or multiple quantum wells. The mechanism which is due to free carrier induced refractive nonlinearities at near band-gap resonant frequencies has an instantaneous turn-on time and a recovery time that depends on the speed at which the carriers are dissipated. A recovery time as short as 130 ps has been obtained experimentally by the application of an external dc bias which sweeps out the carriers from the quantum wells.

Paper Details

Date Published: 1 September 1991
PDF: 6 pages
Proc. SPIE 1474, Optical Technology for Signal Processing Systems, (1 September 1991); doi: 10.1117/12.44904
Show Author Affiliations
Patrick LiKamWa, CREOL/Univ. of Central Florida (United States)
Choong-Bum Park, CREOL/Univ. of Central Florida (United States)
Alan Miller, CREOL/Univ. of Central Florida (United States)


Published in SPIE Proceedings Vol. 1474:
Optical Technology for Signal Processing Systems
Mark P. Bendett, Editor(s)

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