Abstract
A theoretical study of the nonlinear propagation of picosecond chirped pulses in single-mode fibers is presented. We show that, under appropriate conditions, spectral narrowing—rather than broadening, as is generally believed—is induced, owing to the interplay of self-phase-modulation and dispersion. For downchirped pulses at a wavelength of 0.9 μm and a peak power as low as 0.1 W, substantial spectral narrowing occurs.
© 1993 Optical Society of America
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