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Comments on “Switching dynamics of short optical pulses in a nonlinear directional coupler”

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1 Author(s)
Xiaoguang Zhang ; Dept. of Phys., Beijing Univ., China

For original paper see Shum et al., ibid., vol.31, p.190-200 (1995). Shum et al. presented a study of the effects of a dispersive coupling coefficient on the switching dynamics of short optical pulses in a nonlinear two-core directional coupler, in which the authors used the Fourier series analysis method. Xiaoguang Zhang repeats the work using the so-called modified version of the split-step Fourier method. The results were in agreement with the paper by Shum et al. when the dispersive coupling coefficient was R'=0. On the other hand, when the coupling-coefficient dispersion was taken into account, i.e., R'≠0, the results were just the mirror inversion of those of the paper by Shum et al. in the time domain

Published in:

Quantum Electronics, IEEE Journal of  (Volume:37 ,  Issue: 5 )

Date of Publication:

May 2001

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