A strained-layer InGaAs-GaAs asymmetric cladding gain-coupled DFB laser with titanium surface gratings by metalorganic chemical vapor deposition

M. L. Osowski, R. Panepucci, I. Adesida, J. J. Coleman

Research output: Contribution to journalArticle

28 Citations (Scopus)

Abstract

A single growth step ridge waveguide InGaAs-GaAs distributed feedback (DFB) laser with second-order Ti surface gratings is described. The Ti gratings introduce a periodic variation of the loss in the cavity to promote single frequency emission. The device operates on single longitudinal and lateral modes, with a threshold current of 27.9 mA and more than 30 dB of side-mode suppression.

Original languageEnglish
Pages (from-to)422-424
Number of pages3
JournalIEEE Photonics Technology Letters
Volume9
Issue number4
DOIs
Publication statusPublished - Apr 1 1997

Keywords

  • Distributed feedback lasers
  • Gratings
  • Quantumwell lasers
  • Semiconductor lasers
  • Strain

ASJC Scopus subject areas

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

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