A. M. Johnson, R. H. Stolen, and W. M. Simpson
One can in principle compress any optical pulse by its interaction with a medium that results in the broadening of its frequency spectrum. A single-mode silica optical fiber is such a medium for pulse compression. The medium has an intensity dependent nonlinear index of refraction and results in the nonlinear phenomenon of self-phase modulation which results in the desired spectral broadening.
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