GaN-based integrated photonics chip with suspended LED and waveguide

Xin Li, Yongjin Wang, Kazuhiro Hane, Zheng Shi, Jiang Yan

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


We propose a GaN-based integrated photonics chip with suspended LED and straight waveguide with different geometric parameters. The integrated photonics chip is prepared by double-side process. Light transmission performance of the integrated chip verse current is quantitatively analyzed by capturing light transmitted to waveguide tip and BPM (beam propagation method) simulation. Reduction of the waveguide width from 8 μm to 4 μm results in an over linear reduction of the light output power while a doubling of the length from 250 μm to 500 μm only results in under linear decrease of the output power. Free-space data transmission with 80 Mbps random binary sequence of the integrated chip is capable of achieving high speed data transmission via visible light. This study provides a potential approach for GaN-based integrated photonics chip as micro light source and passive optical device in VLC (visible light communication).

Original languageEnglish
Pages (from-to)43-47
Number of pages5
JournalOptics Communications
Publication statusPublished - 2018 May 15


  • Gallium nitride
  • Light-emitting diodes
  • Optical waveguide
  • Photonics chip
  • Visible light communication

ASJC Scopus subject areas

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


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