Hybrid dielectric/AlGaAs mirror spatially filtered vertical cavity top‐surface emitting laser
作者:
R. A. Morgan,
M. K. Hibbs‐Brenner,
J. A. Lehman,
E. L. Kalweit,
R. A. Walterson,
T. M. Marta,
T. Akinwande,
期刊:
Applied Physics Letters
(AIP Available online 1995)
卷期:
Volume 66,
issue 10
页码: 1157-1159
ISSN:0003-6951
年代: 1995
DOI:10.1063/1.113842
出版商: AIP
数据来源: AIP
摘要:
A novel AlGaAs/AlAs–TiO2/SiO2hybrid distributed Bragg reflector is implemented in a planar vertical cavity (top)‐surface emitting laser (VCSEL) to control emission (near 850 nm) to a single TEM00‐like mode. This structure exhibits ≳30 dB side‐mode suppression ratio and constant divergence (or modal profile) throughout its operating range (i.e., the detrimental effects of thermal lensing inherent in implanted VCSELs are eliminated); moreover, a record low threshold voltage &bartil;1.6 V, (0.16 V above photon energy) is obtained, without sacrificing the producibility of the standard all‐epitaxial structure. ©1995 American Institute of Physics.
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