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16 December 1992 Unified approach to nonlinear pulse propagation in optical fibers and self-focusing
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Proceedings Volume 1622, Emerging Optoelectronic Technologies; (1992)
Event: Emerging OE Technologies, Bangalore, India, 1991, Bangalore, India
Nonlinear pulse propagation in optical fibers and stationary self-focusing of laser beams in nonlinear media are investigated using the invariant of motion method. It is shown that this method is not only effective for the solution of problems related to nonlinear propagation in quasi-optics but also algebraically simple and yields results faster. In the first case it enables one to follow the dynamical interplay between dispersion and nonlinearity in detaiLthe knowledge of which is essential for applications to soliton based communication system. In the second case,unlike paraxial ray theory ,it takes into account the spatial characteristics of the whole beam and shows that the real critical power for self- focusing should be at least four times the critical power given by paraxial ray theory.
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Ajit Kumar "Unified approach to nonlinear pulse propagation in optical fibers and self-focusing", Proc. SPIE 1622, Emerging Optoelectronic Technologies, (16 December 1992);

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