Concepedia

GaSb vertical-cavity surface-emitting lasers for the 1.5 μm range

Johannes Koeth, R. Dietrich, A. Forchel

Applied Physics Letters · 1998 · 34 citations · 11 references

DOI

Concepts

Abstract

We have developed GaSb/AlGaSb vertical-cavity surface-emitting lasers (VCSELs) by using solid source molecular beam epitaxy. The reflectivity spectra of the VCSELs show a very narrow (0.9 meV) cavity resonance at 1.5 μm. cw optical pumping results in lasing at the wavelength of the cavity resonance with a laser threshold density of 530 W/cm2 at 77 K.

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