FDTD Simulation of An 1×2 Beam Splitter Using Photonic Bandgap on SOI Wafer

Shyh Lin Tsao*, Lan Chih Yang, Hsin Chun Huang, Shu Fen Hu

*Corresponding author for this work

Research output: Contribution to journalConference articlepeer-review


We present a novel design of an 1×2 photonic crystal beam splitter using silicon-on-insulator integrated optical technology. According to the design, we can reduce the size of beam splitter without increasing the propagation loss. In this paper, we study the 1×2 beam splitting ratio by changing the position of the center air hole. We use a finite-difference-time- domain (FDTD) method to simulate the propagation of the light. The 1×2 PBG beam splitter is designed with 180 degree output bending angles. The size of this novel beam splitting device are 8μm × 3.44μm.

Original languageEnglish
Pages (from-to)158-166
Number of pages9
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 2003
Externally publishedYes
EventPhotonic Devices and Algorithms for Computing V - San Diego, CA, United States
Duration: 2003 Aug 62003 Aug 7


  • Finite-difference- time-domain (FDTD)
  • Photonic crystal
  • Silicon-on-insulator (SOI)
  • Splitter

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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