Low chirp observed in directly modulated quantum dot lasers

被引：163

作者：

Saito, H ^{[1
]}

Nishi, K ^{[1
]}

Kamei, A ^{[1
]}

Sugou, S ^{[1
]}

机构：

[1] NEC Corp Ltd, Optoelect & High Frequency Device Labs, Tsukuba, Ibaraki, Japan

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2000年 / 12卷 / 10期

关键词：

chirp; modulation; quantum dot lasers;

D O I：

10.1109/68.883809

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 examined the dynamic properties of high-aspect-ratio InAs-quantum-dot (QD) lasers at room temperature. A novel characteristic of low chirp in the lasing wavelength under 1-GHz current modulation was found in the quantum dot lasers. This is more than one order of magnitude less than the typical chirp (0.2-nm) found in a conventional quantum well laser that we used as a reference. Low chirp was obtained not only in the ground state lasing but in the second level lasing of quantum dots as well.

引用

页码：1298 / 1300

页数：3

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