Open AccessULTRA-SHORT PULSE PROPAGATING IN FIBONACCI QUASI-PERIODIC OPTICAL SUPER-LATTICE INFLUENCED BY GVD AND SPM
Author(s) -
Yanxia Gao,
Fan Diang-Yuan
Publication year - 1999
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.48.1060
Subject(s) - fibonacci number , lattice (music) , physics , spectral line , self phase modulation , dispersion (optics) , optics , pulse (music) , bandwidth limited pulse , ultrashort pulse , nonlinear optics , quantum mechanics , laser , mathematics , discrete mathematics , detector , acoustics
In this paper, from the structure feature of the Fibonacci super-lattice, based on the principles of self phase modulation (SPM) and group velocity dispersion (GVD), we make use of the split step FFT method, conduct an investigation in SPM and the effects of higher order GVD to spectral devel-opment and temporal shaping of ultra-short pulses propagating in the Fibonacci super-lattice. It is shown, when the ultra-short pulses propagating in the Fibonacci super-lattice, because of SPM and GVD, the evolution of the pulse shape and development of the spectra are asymmetric. With increasing length of the super-lattice, the pulse will split into two separate sub-pulses, and the pulse spectra may also split.