Reduction of second- and third-order harmonic distortion by nonlinear absorption in gain-coupled distributed-feedback laser diodes

被引：2

作者：

Futakuchi, N ^{[1
]}

Taguchi, T ^{[1
]}

Nakano, Y ^{[1
]}

机构：

[1] Univ Tokyo, Dept Elect Engn, Bunkyo Ku, Tokyo 1138656, Japan

来源：

IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS | 1999年 / 5卷 / 03期

关键词：

analog transmission; absorptive grating; distributed-feedback laser; gain coupling; harmonic distortion; nonlinearity; subcarrier multiplexing;

D O I：

10.1109/2944.788406

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：

We have calculated the characteristics of second- and third-order harmonic distortion in gain-coupled distributed-feedback (DFB) lasers using a set of three rate equations. In these calculations, the relaxation oscillation, nonlinear gain compression, and nonlinear loss compression are taken into account. We have found that modulation distortion due to nonlinear gain compression is reduced significantly in the gain-coupled DFB laser of absorptive-grating type. This improvement occurs because gain compression is compensated by loss compression within the grating.

引用

页码：463 / 468

页数：6

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