Design of a grating coupler made of GeTe for Si nanowire waveguide

Ryutaro Eguchi, Hiroyuki Tsuda

Research output: Chapter in Book/Report/Conference proceedingConference contribution


A grating coupler using GeTe with a high refractive index of 5.45 is proposed. The diffraction efficiency of 71% and the coupling efficiency of -2.0 dB are confirmed by finite-difference time-domain (FDTD) method.

Original languageEnglish
Title of host publicationPhotonic Networks and Devices 2014
PublisherOptical Society of American (OSA)
ISBN (Print)9781557527370
Publication statusPublished - 2014 Jan 1
EventPhotonic Networks and Devices, 2014 - San Diego, CA, United States
Duration: 2014 Jul 132014 Jul 17

Publication series

NameOptics InfoBase Conference Papers
ISSN (Electronic)2162-2701


OtherPhotonic Networks and Devices, 2014
CountryUnited States
CitySan Diego, CA


ASJC Scopus subject areas

  • Instrumentation
  • Atomic and Molecular Physics, and Optics

Cite this

Eguchi, R., & Tsuda, H. (2014). Design of a grating coupler made of GeTe for Si nanowire waveguide. In Photonic Networks and Devices 2014 (Optics InfoBase Conference Papers). Optical Society of American (OSA).