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IEEE International Semiconductor Laser Conference (ISLC)

Four-wave mixing in semiconductor optical amplifiers at THz detuning frequencies: experiment and theory

Jesper Mørk, Alexander V. Uskov, J. Mark, M.C. Tatham, G. Sherlock

Published Dec 17, 2002• 2 citations
Publisher

Abstract

Highly non-degenerate four-wave mixing processes in semiconductor optical amplifiers are analyzed by comparing experimental data at detuning frequencies up to 3 THz with numerical calculations based on microscopic density matrix equations.
DOI
10.1109/islc.1994.518921

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Nearly degenerate four-wave mixing in distributed feedback semiconductor lasers above threshold in investigated theoretically and experimentally. The experimental results reveal an almost symmetric amplification of probe and conjugate fields versus frequency with respect to zero pump-probe detuning, in contrast with observations in traveling wave amplifiers. The result of the theory, based on the coupled mode formalism, is a set of nonlinear differential equations which are solved in the mean field approximation. The theory is shown to match well with the experimental results when the effect of the nonlinear gain compression is taken into account.>
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