Low divergence electrically pumped circular-grating surface-emitting DBR laser on an InGaAs/GaAs structure

M. Fallahi, M. Dion, F. Chatenoud, I. M. Templeton, K. A. McGreer, G. Champion, R. Barber

Research output: Contribution to journalArticlepeer-review

14 Scopus citations

Abstract

The Letter reports the fabrication and low divergence operation of an electrically pumped circular grating surface emitting DBR laser on an InGaAs/GaAs SQW structure. A threshold current below 85 mA, output power of more than 20 mW and a divergence of less than 1° FWHM were obtained.

Original languageEnglish (US)
Pages (from-to)1412-1414
Number of pages3
JournalElectronics Letters
Volume29
Issue number16
DOIs
StatePublished - Aug 1993
Externally publishedYes

Keywords

  • Circular gratings
  • Semiconductor lasers

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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