IMPROVED EXPRESSION FOR THE TIME-BANDWIDTH PRODUCT OF PICOSECOND OPTICAL PULSES FROM GAIN-SWITCHED SEMICONDUCTOR-LASERS

被引：13

作者：

WADA, K

CHO, Y

机构：

[1] Department of Physics and Electronics, Faculty of Engineering, University of Osaka Prefecture, Sakai, Osaka

来源：

OPTICS LETTERS | 1994年 / 19卷 / 20期

关键词：

D O I：

10.1364/OL.19.001633

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

An improved expression for the time-bandwidth product (Delta t Delta f) of picosecond optical pulses from gain-switched semiconductor lasers was obtained by a series of numerical simulations based on rate equations without making any assumption for a particular pulse shape and chirp condition. The relation can be expressed by Delta t Delta f = 0.31 root 1 + (1.64 alpha)(2) as a function of the linewidth-enhancement factor alpha. The influence of the spontaneous emission factor beta on the relation is also examined.

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页码：1633 / 1635

页数：3

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