Investigation of optical far-field stability in long-wavelength VCSELs: thermal and carrier-induced effects

This paper reports on a numerical analysis of methods for current injection into AlInGaAs/InP tunnel-junction electrically pumped vertical-external-cavity surface-emitting lasers. The tunnel junction is patterned to minimize the current crowding effect and support the fundamental transverse modes. Optimization of the tunnel junction radius predicts 9-mW emission and 4% wallplug efficiency in the single-mode regime. Additional patterning of the tunnel junction in the form of a coaxial ring, without modifying its total radius but reducing its area, maintains or improves the emitted power and in addition enhances wall-plug efficiency by around 60%. A design of E-VECSEL is proposed which offers five times larger emitted power and wall-plug efficiency in the single-mode regime in comparison to recently reported experimental devices.

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Transverse optical mode analysis of long-wavelength VCSELs for high single-mode power operation

Bäcker

Odermatt

Santschi

et al. 2008

2008 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)

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Investigation of optical far-field stability in long-wavelength VCSELs: thermal and carrier-induced effects

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Double-diamond high-contrast-gratings vertical external cavity surface emitting laser

Double-diamond high-contrast-gratings vertical external cavity surface emitting laser

Electrically Pumped Vertical-External-Cavity Surface-Emitting Lasers With Patterned Tunnel Junction for Single Transversal-Mode Emission

Transverse optical mode analysis of long-wavelength VCSELs for high single-mode power operation

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