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Ultra threshold current lasers

  • P. Daniel Dapkus*
  • , Michael H. MacDougal
  • , Gye Mo Yang
  • , Aaron E. Bond
  • , Chao Kun Lin
  • , Denis Tishinin
  • , Vasily Pudikov
  • , Yong Cheng
  • , Kushant Uppal
  • *Corresponding author for this work
  • University of Southern California

Research output: Contribution to journalConference articlepeer-review

Abstract

Ultralow threshold current vertical-cavity surface-emitting lasers (VCSELs) will enable practical laser-based smart pixels. Such devices have emerged through the application of monolithically integrated native oxides of AlGaAs as current constriction and mode control layers and as high-contrast Bragg reflectors. This paper demonstrates and analyzes the role of the oxide in current constriction and optical field control to predict they scaling of VCSELs to microamp thresholds. In addition, an attempt is made to demonstrate and analyze the impact of high-contrast AlAs oxide/GaAs Bragg mirrors formed by selective oxidation on the performance of VCSELs and study the trade-offs in device characteristics that arise from use of electrically insulating mirrors.

Original languageEnglish
Pages (from-to)357-358
Number of pages2
JournalConference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS
StatePublished - 1996
EventProceedings of the 1996 Conference on Lasers and Electro-Optics, CLEO'96 - Anaheim, CA, USA
Duration: 1996.06.21996.06.7

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