Abstract
When a strong near-resonant laser beam propagates through an atomic vapor, it can simultaneously induce several different nonlinear optical processes. In certain restricted conditions, these processes evolve independently of one another, but in general these processes compete. We have observed competition1 between four-wave mixing2 (FWM) and amplified spontaneous emission3 (ASE) and have presented an explanation for this phenomenon based on the solution of the coupled-amplitude equations of nonlinear optics. We extend our previous work by presenting a more detailed theoretical explanation of this effect and evidence that competition of this sort occurs quite generally in nonlinear optical systems.
© 1986 Optical Society of America
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