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The numerical study of pulse evolution in self‐similar parabolic pulse amplifier
Author(s) -
Chenghou Tu,
Fuyun Lu,
Ting Lei,
Yongnan Li,
Wengang Guo,
Xiaoyi Dong
Publication year - 2007
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.22636
Subject(s) - pulse (music) , dispersion (optics) , amplifier , computer simulation , microwave , fiber , pulse shaping , physics , optics , materials science , mechanics , optoelectronics , quantum mechanics , cmos , detector , composite material , laser
In this article, the influences of initial pulse and gain fiber parameters on the pulse's self‐similar evolution are studied by numerical simulation. We propose and demonstrate that dispersion length is the determining factor of pulse's self‐similar evolution. For a given input pulse, if dispersion length is comparable or smaller than fiber length, it can evolve into similariton, otherwise it can not. Under the self‐similar evolution condition, increasing pulse energy and gain coefficient can accelerate self‐similar evolution, otherwise the effect is not evident. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 1785–1787, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22636