Impact of an Antiresonant Oxide Island on the Lasing of Lateral Modes in VCSELs
Use of antiresonant structures is a proven, efficient method of improving lateral mode selectivity in VCSELs. In this paper, we analyze the impact of a low-refractive antiresonant oxide island buried in a top VCSEL mirror on the lasing conditions of lateral modes of different orders. By performing c...
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doaj-853b656da0114164b2db79a16782527a2020-11-25T02:12:11ZengMDPI AGMaterials1996-19442020-05-01132195219510.3390/ma13092195Impact of an Antiresonant Oxide Island on the Lasing of Lateral Modes in VCSELsMarta Więckowska0Robert P. Sarzała1Rafał Ledzion2Maciej Dems3Institute of Physics, Lodz University of Technology, ul. Wólczańska 219, 90-924 Łódź, PolandInstitute of Physics, Lodz University of Technology, ul. Wólczańska 219, 90-924 Łódź, PolandInstitute of Physics, Lodz University of Technology, ul. Wólczańska 219, 90-924 Łódź, PolandInstitute of Physics, Lodz University of Technology, ul. Wólczańska 219, 90-924 Łódź, PolandUse of antiresonant structures is a proven, efficient method of improving lateral mode selectivity in VCSELs. In this paper, we analyze the impact of a low-refractive antiresonant oxide island buried in a top VCSEL mirror on the lasing conditions of lateral modes of different orders. By performing comprehensive thermal, electrical, and optical numerical analysis of the VCSEL device, we show the impact of the size and location of the oxide island on the current-crowding effect and compute threshold currents for various lateral modes. If the island is placed close to the cavity, the threshold shows strong oscillations, which for moderate island distances can be tuned to increase the side mode discrimination. We are therefore able to pinpoint the most important factors influencing mode discrimination and to identify oxide island parameters capable of providing single-lateral-mode emission.https://www.mdpi.com/1996-1944/13/9/2195VCSELARROWoxidationantiresonancewaveguidingoptical modeling |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Marta Więckowska Robert P. Sarzała Rafał Ledzion Maciej Dems |
spellingShingle |
Marta Więckowska Robert P. Sarzała Rafał Ledzion Maciej Dems Impact of an Antiresonant Oxide Island on the Lasing of Lateral Modes in VCSELs Materials VCSEL ARROW oxidation antiresonance waveguiding optical modeling |
author_facet |
Marta Więckowska Robert P. Sarzała Rafał Ledzion Maciej Dems |
author_sort |
Marta Więckowska |
title |
Impact of an Antiresonant Oxide Island on the Lasing of Lateral Modes in VCSELs |
title_short |
Impact of an Antiresonant Oxide Island on the Lasing of Lateral Modes in VCSELs |
title_full |
Impact of an Antiresonant Oxide Island on the Lasing of Lateral Modes in VCSELs |
title_fullStr |
Impact of an Antiresonant Oxide Island on the Lasing of Lateral Modes in VCSELs |
title_full_unstemmed |
Impact of an Antiresonant Oxide Island on the Lasing of Lateral Modes in VCSELs |
title_sort |
impact of an antiresonant oxide island on the lasing of lateral modes in vcsels |
publisher |
MDPI AG |
series |
Materials |
issn |
1996-1944 |
publishDate |
2020-05-01 |
description |
Use of antiresonant structures is a proven, efficient method of improving lateral mode selectivity in VCSELs. In this paper, we analyze the impact of a low-refractive antiresonant oxide island buried in a top VCSEL mirror on the lasing conditions of lateral modes of different orders. By performing comprehensive thermal, electrical, and optical numerical analysis of the VCSEL device, we show the impact of the size and location of the oxide island on the current-crowding effect and compute threshold currents for various lateral modes. If the island is placed close to the cavity, the threshold shows strong oscillations, which for moderate island distances can be tuned to increase the side mode discrimination. We are therefore able to pinpoint the most important factors influencing mode discrimination and to identify oxide island parameters capable of providing single-lateral-mode emission. |
topic |
VCSEL ARROW oxidation antiresonance waveguiding optical modeling |
url |
https://www.mdpi.com/1996-1944/13/9/2195 |
work_keys_str_mv |
AT martawieckowska impactofanantiresonantoxideislandonthelasingoflateralmodesinvcsels AT robertpsarzała impactofanantiresonantoxideislandonthelasingoflateralmodesinvcsels AT rafałledzion impactofanantiresonantoxideislandonthelasingoflateralmodesinvcsels AT maciejdems impactofanantiresonantoxideislandonthelasingoflateralmodesinvcsels |
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