Modulation bandwidth optimisation for unipolar intersubband semiconductor lasers

被引：15

作者：

Cheung, CYL

Spencer, PS

Shore, KA

机构：

[1] School of Electronic Engineering and Computer Systems, University of Wales, Bangor LL57 1UT, Wales

来源：

IEE PROCEEDINGS-OPTOELECTRONICS | 1997年 / 144卷 / 01期

关键词：

intersubband semiconductor lasers; modulation bandwidth;

D O I：

10.1049/ip-opt:19971068

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：

A rate equation analysis of the direct-current modulation response of intersubband semiconductor lasers is reported using a rate equation model for a triple quantum well structure. It is demonstrated that terahertz modulation bandwidths may be achievable due to the picosecond carrier lifetimes which are characteristic of such structures, A novel feature of the modulation response of intersubband semiconductor lasers is the existence of an optimum output power for achieving maximum modulation bandwidth in a given structure. Further optimisation of the modulation performance is achievable via appropriate design of the coupled quantum well structure.

引用

页码：44 / 47

页数：4

共 8 条

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