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

页码：1579 / 1581

页数：3

共 7 条

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