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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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