Circular-Grating Surface-Emitting Distributed Bragg Reflector Lasers on an InGaAs–GaAs Structure for 0.98-μm Applications

Mahmoud Fallahi, Françhise Chatenoud, Michel Dion, Ian Templeton, Richard Barber, Jim Thompson

Research output: Contribution to journalArticle

19 Scopus citations

Abstract

In this paper, we report on the design and fabrication of electrically-pumped circular-grating surface-emitting DBR lasers for operation in the 0.98-μm wavelength range. The layer structure with InGaAs–GaAs–AlGaAs strained multiquantum-wells was obtained by one-step epitaxial growth. Circular gratings are defined by electron-beam lithography around circular gain sections of different diameters. Low threshold CW operation as low as 26 mA for a 60-μm diameter gain section, and high-power pulsed operation of over 120 mW for a 100-μm diameter gain region are demonstrated. A quasi-circular far-field pattern with a divergence of about 1° is obtained.

Original languageEnglish (US)
Pages (from-to)382-386
Number of pages5
JournalIEEE Journal on Selected Topics in Quantum Electronics
Volume1
Issue number2
DOIs
StatePublished - Jun 1995
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Electrical and Electronic Engineering

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