Second-harmonic generation from a first-order quasi-phase-matched GaAs

Edik Urikhaevich Rafailov, P Loza-Alvarez, Christian Thomas Alcuin Brown, Wilson Sibbett, RM DeLaRue, P Millar, DA Yanson, JS Roberts, PA Houston

Research output: Contribution to journalArticlepeer-review

29 Citations (Scopus)

Abstract

We demonstrate, for the first time to our knowledge, the generation of second-harmonic pulses by use of a novel methodology for achieving first-order quasi-phase matching in a semiconductor waveguide crystal. This methodology is based on a periodic modulation of the susceptibility coefficient along the direction of light-beam propagation in which advantage is taken of the fact that chi ((2))(GaAs) > chi ((2))(AlxGa1-xAs). Efficient second-harmonic generation at 975 mn of a pump wavelength of 1950 nm has been demonstrated for a crystal with a nonuniform domain dimension (duty cycle, similar to 39/61). (C) 2001 Optical Society of America.

Original languageEnglish
Pages (from-to)1984-1986
Number of pages3
JournalOptics Letters
Volume26
Issue numberN24
Publication statusPublished - 15 Dec 2001

Keywords

  • ALGAAS WAVE-GUIDES
  • 2ND-HARMONIC GENERATION
  • BLUE-LIGHT

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