Semiconductor figure of merit for nonlinear directional couplers

Wright, E. M.; Koch, S. W.; Ehrlich, J. E.; Seaton, C. T.; Stegeman, G. I.
June 1988
Applied Physics Letters;6/20/1988, Vol. 52 Issue 25, p2127
Academic Journal
We present numerical calculations of the material figure of merit for a variety of bulk semiconductors at room temperature. For efficient switching to be possible in a half-beat-length nonlinear directional coupler, a minimum material requirement is that the figure of merit should exceed unity.


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