Strong frequency conversion in heterogeneously integrated GaAs resonators

Lin Chang*, Andreas Boes, Paolo Pintus, Jon D. Peters, M. J. Kennedy, Xiao-Wen Guo, Nicolas Volet, Su-Peng Yu, Scott B. Papp, John E. Bowers

*Corresponding author for this work

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaperJournal articleResearchpeer-review

Abstract

In this contribution, we demonstrate the first integrated gallium arsenide (GaAs) ring resonator for second harmonic generation (SHG) on a GaAs-on-insulator platform. Such resonators exhibit high nonlinear optical coefficients, a strong optical confinement, and intrinsic quality factors exceeding 2.6 x 10(5), which makes them very attractive for nonlinear optical applications. The fabricated resonators exhibit a great potential for frequency conversion: when 61 mu W of pump power at 2 mu m wavelength is coupled into the cavity, the absolute internal conversion efficiency is 4%. We predict an external SHG efficiency beyond 1 000 000%/W based on the GaAs resonance devices. Such nonlinear resonant devices of GaAs and its aluminum GaAs alloy can be directly integrated with active components in nonlinear photonic integrated circuits (PICs). This work paves a way for ultra-high efficient and compact frequency conversion elements in PICs. (C) 2019 Author(s).

Original languageEnglish
Article number036103
JournalAPL Photonics
Volume4
Issue3
Number of pages6
ISSN2378-0967
DOIs
Publication statusPublished - Mar 2019
Externally publishedYes

Keywords

  • 2ND-HARMONIC GENERATION
  • LITHIUM-NIOBATE
  • WAVE-GUIDES

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