PULSE-PROPAGATION IN A LINEAR, CAUSALLY DISPERSIVE MEDIUM

被引:34
作者
OUGHSTUN, KE
机构
[1] Department of Computer Science and Electrical Engineering, University of Vermont, Burlington
关键词
D O I
10.1109/5.104213
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
The uniform asymptotic description of optical pulse propagation in a linear, causally dispersive, absorptive dielectric, as described by the classical Lorentz model, is presented. The resultant pulse distortion in a single resonance Lorentz medium is shown to be primarily due to the Sommerfeld and Brillouin precursor fields. The mathematical approach does not rely upon any quasimonochromatic or slowly varying envelope approximation and consequently provides a canonical description of linear pulse dispersion dynamics that is completely valid for rapid rise-time pulses of arbitrary time duration. The results do not depend upon any nth-order dispersion approximation so that the causality relations that are critical to the physically proper analysis of linear dispersive pulse propagation phenomena are maintained.
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收藏
页码:1379 / 1390
页数:12
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