Electroluminescence of unoxidized 847 nm vertical cavity surface-emitting laser with AlAs/Al0.22Ga0.78As distributed Bragg reflectors

  • Kerphy Liandro Magpulong Patrocenio National Institute of Physics, University of the Philippines DIliman
  • Anthony Tuico Materials Science and Engineering Program, University of the Philippines Diliman
  • Horace Andrew Husay National Institute of Physics, University of the Philippines Diliman
  • Philippe Martin Tingzon Materials Science and Engineering Program, University of the Philippines Diliman
  • Gerald Catindig National Institute of Physics, University of the Philippines Diliman
  • Karl Cedric Gonzales National Institute of Physics, University of the Philippines Diliman
  • Rommel Jagus Materials Science and Engineering Program, University of the Philippines Diliman
  • John Paul Ferrolino Materials Science and Engineering Program, University of the Philippines Diliman
  • John Daniel Vasquez Materials Science and Engineering Program, University of the Philippines Diliman
  • Elizabeth Ann Prieto National Institute of Physics, University of the Philippines Diliman
  • Armando Somintac National Institute of Physics, University of the Philippines Diliman
  • Arnel Salvador National Institute of Physics, University of the Philippines Diliman
  • Elmer Estacio National Institute of Physics, University of the Philippines Diliman

Abstract

We present the electroluminescence spectra of an in-house grown and fabricated unoxidized vertical cavity surface-emitting laser (VCSEL) using molecular beam epitaxy (MBE). The VCSEL device is composed of asymmetric pairs of top and bottom aluminum arsenide/aluminum gallium arsenide (AlAs/Al0.22Ga0.78As) distributed Bragg reflecting (DBRs) mirrors with gallium arsenide GaAs/AlGaAs active region. Fabricated device are patterned into cylindrical mesas where several pairs of the top DBR were etched to investigate the quality of the underlying layers. Successful incorporation of the DBR is confirmed through the presence of Fabry-Perot modes. The observed emission peak at 847 nm falls within the stop-band range with a full width at half maximum (FWHM) of 4.4nm. The corresponding peak can also be observed in the photocurrent spectra with FWHM of 5.3nm. Red-shifting of the electroluminescence peak is apparent with increasing injection current and may result from induced heating of the device.

Published
2018-06-01
How to Cite
[1]
K. L. Patrocenio, A. Tuico, H. A. Husay, P. M. Tingzon, G. Catindig, K. C. Gonzales, R. Jagus, J. P. Ferrolino, J. D. Vasquez, E. A. Prieto, A. Somintac, A. Salvador, and E. Estacio. Electroluminescence of unoxidized 847 nm vertical cavity surface-emitting laser with AlAs/Al0.22Ga0.78As distributed Bragg reflectors, Proceedings of the Samahang Pisika ng Pilipinas 36, SPP-2018-PC-51 (2018). URL: https://paperview.spp-online.org/proceedings/article/view/SPP-2018-PC-51.
Section
Poster Session C (Mathematical Physics, Optics, and Interdisciplinary Topics)