Low threshold voltage vertical-cavity lasers fabricated by selective oxidation

K. D. Choquette, R. P. Schneider, K. L. Lear, K. M. Geib

Research output: Contribution to journalArticlepeer-review


Novel vertical-cavity surface emitting lasers fabricated using selective oxidation to form a current aperture under a top monolithic distributed Bragg reflector mirror are reported. Large cross-sectional area lasers (259μm2) exhibit threshold current densities of 150A/cm2per quantum well and record low threshold voltage of 1.33V. Smaller lasers (36,μm-) possess threshold currents of 900μA with maximum output powers greater than 1mW. The record performance of these oxidised vertical-cavity lasers arises from the low mirror series resistance and very efficient current injection into the active region.

Original languageEnglish (US)
Pages (from-to)2043-2044
Number of pages2
JournalElectronics Letters
Issue number24
StatePublished - Nov 24 1994
Externally publishedYes


  • Oxidation
  • Vertical cavity surface emitting lasers

ASJC Scopus subject areas

  • Electrical and Electronic Engineering


Dive into the research topics of 'Low threshold voltage vertical-cavity lasers fabricated by selective oxidation'. Together they form a unique fingerprint.

Cite this