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Small aperture confined vertical cavity surface emitting laser effects on output performance

F. Z. JASIM1,* , K. OMAR1, Z. HASSAN1

Affiliation

  1. Nano-optoelectronics Research and Technology Laboratory, School of Physics, Universiti Sains Malaysia, 11800 Penang, Malaysia

Abstract

The effect of the various oxide aperture sizes on output performance of GaAs MQWs VCSEL is numerically investigated using ISETCAD simulation program. The influence of the aperture diameter on the output power, threshold current, slope and differential quantum efficiency is observed. In the study, we found that by increasing the aperture diameter, the maximum output power, slope efficiency, and differential quantum efficiency was increased due to more lasing modes being confined inside the active region which lead to increase the number in radiative recombinations inside the active medium.

Keywords

GaAs, VCSEL, Oxide aperture.

Citation

F. Z. JASIM, K. OMAR, Z. HASSAN, Small aperture confined vertical cavity surface emitting laser effects on output performance, Optoelectronics and Advanced Materials - Rapid Communications, 3, 11, November 2009, pp.1247-1249 (2009).

Submitted at: Sept. 28, 2009

Accepted at: Oct. 29, 2009