Self-similar propagation of parabolic pulses in normal-dispersion fiber amplifiers
Self-similar propagation of parabolic pulses in normal-dispersion fiber amplifiers
复制标题
DOI：
10.1364/josab.19.000461
复制
发表时间：
2002-03-01
影响因子：
1.9
通讯作者：
Dudley, JM
中科院分区：
文献类型：
--
作者：
Kruglov, VI;Peacock, AC;Dudley, JM
Pulse propagation in high-gain optical fiber amplifiers with normal group-velocity dispersion has been studied by self-similarity analysis of the nonlinear Schrodinger equation with gain. For an amplifier with a constant distributed gain, an exact asymptotic solution has been found that corresponds to a linearly chirped parabolic pulse that propagates self-similarly in the amplifier, subject to simple scaling rules. The evolution of an arbitrary input pulse to an asymptotic solution is associated with the development of low-amplitude wings on the parabolic pulse whose functional form has also been found by means of self-similarity analysis. These theoretical results have been confirmed with numerical simulations. A series of guidelines for the practical design of fiber amplifiers to operate in the asymptotic parabolic pulse regime has also been developed. (C) 2002 Optical Society of America.
