BAND-GAP ENGINEERED DIGITAL ALLOY INTERFACES FOR LOWER RESISTANCE VERTICAL-CAVITY SURFACE-EMITTING LASERS

被引：81

作者：

PETERS, MG

THIBEAULT, BJ

YOUNG, DB

SCOTT, JW

PETERS, FH

GOSSARD, AC

COLDREN, LA

机构：

[1] Department of Electrical and Computer Engineering, University of California, Santa Barbara

来源：

APPLIED PHYSICS LETTERS | 1993年 / 63卷 / 25期

关键词：

D O I：

10.1063/1.110156

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We report on a technique of grading the heterobarrier interfaces of a p-type distributed Bragg reflector mirror to reduce the operating voltages of vertical-cavity surface-emitting lasers (VCSELs). We report VCSELs with lower operating voltages (2-3 V) and record continuous-wave room-temperature power-conversion efficiencies (17.3%). We experimentally demonstrate that by using a parabolic grading and modulating the doping correctly, a flat valence band is generated that provides low voltage hole transport. The low resistance mirrors are achieved using low Be doping, digital-alloy grading and 600-degrees-C growth temperatures.

引用

页码：3411 / 3413

页数：3

共 11 条

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