Low Threshold CW Operation of Circular-Grating Surface-Emitting DBR Lasers Using MQW and a Self-Aligned Process

M. Fallahi, M. Dion, F. Chatenoud, I. M. Templeton, R. Barber, J. Sedivy

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

In this letter, we present the first room temperature continuous wave operation of circular-grating surface-emitting DBR lasers. The structure is an In GaAs/GaAs strained multiquantum-well. A modified fabrication process with a better control on the steps is used. A CW threshold current as low as 26 mA at a lasing wavelength of about 977 nm are reported. This is the first demonstration of CW operation for these lasers in any material system.

Original languageEnglish (US)
Pages (from-to)1280-1282
Number of pages3
JournalIEEE Photonics Technology Letters
Volume6
Issue number11
DOIs
StatePublished - Nov 1994

ASJC Scopus subject areas

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

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