High efficiency surface emitting lasers using blazed grating outcouplers

被引：18

作者：

Hagberg, M

Eriksson, N

Larsson, A

机构：

[1] Department of Optoelectronics and Electrical Measurements, Chalmers University of Technology

来源：

APPLIED PHYSICS LETTERS | 1995年 / 67卷 / 25期

关键词：

D O I：

10.1063/1.114927

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Grating coupled surface emitting lasers with rectangular as well as blazed grating outcouplers were investigated. Horizontal cavity InGaAs/AlGaAs laser oscillators, with two rectangular first order surface gratings as feedback elements, were integrated with single detuned rectangular or blazed second order gratings as surface output couplers, using electron beam lithography and chemically assisted ion beam etching. Superior differential quantum and surface emission efficiencies of 56% and 84%, respectively, were measured for lasers with optimized blazed output couplers. (C) 1995 American Institute of Physics.

引用

页码：3685 / 3687

页数：3

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