Cascade four-wave mixing in semiconductor lasers

Nietzke, R.; Fenz, P.; Elsässer, W.; Göbel, E. O.
October 1987
Applied Physics Letters;10/26/1987, Vol. 51 Issue 17, p1298
Academic Journal
Highly efficient cascade frequency mixing signals are generated in a nearly degenerate intracavity four-wave mixing experiment in a GaAs/(GaAl)As semiconductor laser. This method allows a consistent quantitative determination of the third-order nonlinear optical susceptibility within the gain bandwidth of a semiconductor laser. The dependence of this susceptibility on light intensity reveals the contribution of the free-carrier plasma.


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