Mid-Infrared VCSELs with Structured Low Loss Tunnel Junctions

A. Simaz, G. Bohm, A. Koninger, M. A. Belkin

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Electrically pumped vertical cavity surface emitting lasers (VCSELs) operating at 3.4 μm are demonstrated using a low-loss buried tunnel junction (BTJ) based on a structured semi-metallic interface between GaSb and InAs/AlSb superlattice. In contrast to traditional BTJ VCSELs based on a structured interface between highly n- and p-doped layers, the new tunnel junction has orders of magnitude lower optical loss, while providing similar optical and current confinements. VCSEL operation is demonstrated in pulsed mode up to 20 °C.

Original languageEnglish
Title of host publication2024 IEEE 29th International Semiconductor Laser Conference, ISLC 2024 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9798350372991
DOIs
StatePublished - 2024
Event29th IEEE International Semiconductor Laser Conference, ISLC 2024 - Orlando, United States
Duration: 29 Sep 20242 Oct 2024

Publication series

NameConference Digest - IEEE International Semiconductor Laser Conference
ISSN (Print)0899-9406

Conference

Conference29th IEEE International Semiconductor Laser Conference, ISLC 2024
Country/TerritoryUnited States
CityOrlando
Period29/09/242/10/24

Keywords

  • buried tunnel junction
  • laser
  • Mid-infrared
  • VCSEL

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