MECHANISM FOR HIGH SINGLEMODE STABILITY OF GAIN-COUPLED DFB LASERS WITH PERIODICALLY ETCHED QUANTUM-WELLS

被引：3

作者：

MAKINO, T

机构：

[1] Bell-Northern Research Ltd., Ottawa, Ontario, K1 Y 4H7, PO Box 3511, Station C

来源：

ELECTRONICS LETTERS | 1995年 / 31卷 / 18期

关键词：

DISTRIBUTED FEEDBACK LASERS; LASER MODES; SEMICONDUCTOR QUANTUM WELLS;

D O I：

10.1049/el:19951088

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 sidemode suppression ratio of gain-coupled DFB lasers with periodically etched quantum wells is analysed by a more accurate model for amplified spontaneous emission. It is shown that the periodic etching of quantum wells is very effective for providing a high side-mode suppression. The mechanism for the high singlemode stability is explained by the effective modal gain, which has an enhancement at the longer wavelength side of the Bragg stopband.

引用

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页码：1579 / 1581

页数：3

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