Computer Simulations of Fully Cascadable Picosecond All-Optical Logic Using Nonlinear Semiconductor Etalons

Dean Richardson, H. M. Gibbs, S. W. Koch

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

A paired semiconductor etalon scheme for all-optical decision making is proposed, and the results of computer simulations of the device concept are presented. in the envisioned architecture, a two-wavelength logic-gate etalon is operated in series with an “upconverter” etalon to allow cascadable operation on a picosecond time-scale. The paired device achieves a fanout of at least two, as well as good overall contrast, requiring a total input energy of about 75 pJ to perform a single logic operation. The energy requirement might be reduced through the use of multiple-quantum-well materials. The computer simulations of the device behavior are based on a realistic model for the carrier-density-dependent optical nonlinearities of bulk GaAs.

Original languageEnglish (US)
Pages (from-to)804-808
Number of pages5
JournalIEEE Journal of Quantum Electronics
Volume27
Issue number3
DOIs
StatePublished - Mar 1991

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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