Abstract
To obtain a high-bit-rate optical fiber communication system, the transmission of solitons has been suggested.1 By using this technique the pulse can be propagated through the fiber without distortion due to the cancellation of the dispersion and nonlinear effects. Many research works on soliton propagation have been conducted by using analytic and/or numerical approaches. The assumption of purely monochromatic waves was made. However, it is well known that the output from any laser system bears a finite spectral width due to spontaneous emission and other mechanisms. Recently, some attention has been paid to the effects of finite source spectral width or laser fluctuations on nonlinear wave propagation in single-mode optical fibers. The direct and inverse scattering methods were used for understanding soiiton evolutions under the influence of the random chirping on the initial pulse.2,3 The same problem was also studied by solving the nonlinear Schrodinger equation numerically.
© 1988 Optical Society of America
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