Single-transverse-mode 3.4-mW emission of oxide-confined 780-nm VCSELs
1999; Institute of Electrical and Electronics Engineers; Volume: 11; Issue: 12 Linguagem: Inglês
10.1109/68.806839
ISSN1941-0174
AutoresNobuaki Ueki, Akira Sakamoto, T. Nakamura, H. Nakayama, Jun John Sakurai, Hiromi Otoma, Y. Miyamoto, Masahiro Yoshikawa, Masaaki Fuse,
Tópico(s)Semiconductor Quantum Structures and Devices
ResumoThe authors have fabricated oxide-confined vertical-cavity surface-emitting lasers with metal apertures exhibiting a spatial mode filtering effect. Single-mode continuous-wave output is enhanced up to 3.4 mW by this effect for AlGaAs-based 780-nm vertical-cavity surface-emitting lasers with a 3.5-μm-diameter oxide aperture. From numerical calculations, the round-trip loss difference between zeroth- and first-order optical modes as a function of metal aperture size indicates that there is an optimum point; a 4-μm metal aperture size is suitable for higher order mode suppression of a 3.5-μm oxide aperture device.
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