Journal
OPTICS EXPRESS
Volume 15, Issue 6, Pages 2963-2973Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.15.002963
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We obtain exact self-similar solutions to an inhomogeneous nonlinear Schrodinger equation, describing propagation of optical pulses in fiber amplifiers with distributed dispersion and gain. We show that there exists a one-to-one correspondence between such self-similar waves and solitons of the standard, homogeneous, nonlinear Schrodinger equation if a certain compatibility condition is satisfied. As this correspondence guarantees the stability of the novel self-similar waves, we refer to them as similaritons. We demonstrate that, the character of similariton interactions crucially depends on the sign of the similariton phase chirp. In particular, we show that the similariton interactions can under certain conditions lead to the formation of molecule-like bound states of two similaritons. (c) 2007 Optical Society of America.
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