MODELING OF AN ALL-OPTICAL TIME-DIVISION DEMULTIPLEXER

A model for the terahertz optical asymmetric demultiplexer (TOAD) is p resented, and its performance is assessed. A numerical model of a semi conductor laser amplifier (SLA) used as a nonlinear element is also gi ven. Results of SLA carrier density, switching window, pulse switching , and a comparison of phase modulation and power gain for a frame rate higher than the recombination are presented. Also investigated is the required optimum loop asymmetry for producing the desired switching w indow for channel selection, with reduced crosstalk, at the output por t. (C) 1997 John Wiley & Sons, Inc.