Effects of spatial nonuniformity on laser dynamics.
Semiclassical equations of lasing dynamics are rederived for a lasing medium in a cavity with a spatially nonuniform dielectric constant. The nonuniformity causes a radiative coupling between modes of the empty cavity, which results in a renormalization of self- and cross-saturation coefficients. Possible manifestations of these effects in random lasers are discussed.
Deych
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Physics Department, Queens College of City University of New York, Flushing, 11367, USA.