Fabrication and Performance of Selectively Oxidized Vertical-Cavity Lasers

Kent D. Choquette, K. L. Lear, R. P. Schneider, K. M. Geib, J. J. Figiel, Robert Hull

Research output: Contribution to journalArticlepeer-review


We report the high yield fabrication and reproducible performance of selectively oxidized vertical-cavity surface emitting lasers. We show that linear oxidation rates of AlGaAs without an induction period allows reproducible fabrication of buried oxide current apertures within monolithic distributed Bragg reflectors. The oxide layers do not induce obvious crystalline defects, and continuous wave operation in excess of 650 h has been obtained. The high yield fabrication enables relatively high laser performance over a wide wavelength span. We observe submilliamp threshold currents over a wavelength range of up to 75 nm, and power conversion efficiencies at 1 mW output power of greater than 20% over a 50-nm wavelength range.

Original languageEnglish (US)
Pages (from-to)1237-1239
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number11
StatePublished - Nov 1995
Externally publishedYes

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering


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