ON EXPRESSIONS FOR LINE FORM AND NATURAL LINEWIDTH IN SEMICONDUCTOR LASERS

被引：1

作者：

Kovalevski, Artyom P. ^{[1
]}

Noppe, Michael G. ^{[2
]}

机构：

[1] Novosibirsk State Tech Univ, Dept Appl Math, 20 K Marx Ave, Novosibirsk 630092, Russia

[2] Novosibirsk State Tech Univ, Dept Appl & Theoret Phys, Novosibirsk 630092, Russia

来源：

2008 IEEE 25TH CONVENTION OF ELECTRICAL AND ELECTRONICS ENGINEERS IN ISRAEL, VOLS 1 AND 2 | 2008年

关键词：

Line form; linewidth; semiconductor; lasers;

D O I：

10.1109/EEEI.2008.4736696

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：

New expressions for laser mode line form and effective natural linewidth in semiconductor lasers are derived. New linewidth formula is presented in dimensionless values and is functionally different from Schawlow-Townes formula. The line form differs from the Lorentz profile the more frequency nonlinearity parameter is larger. The estimation made allows explaining the influence of amplitude fluctuations in semiconductor lasers by small value of length of lasers. The basic concepts of our approach: using laser model distributed in space; using an experimental formula for laser frequency, depending on the laser amplitude; using a special model of the spectral theory of stochastic processes. The formula derived allows now explaining some experimental measurements of the linewidth: effective natural linewidth does not tend to zero with the increase in laser amplitude.

引用

页码：241 / +

页数：2

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