Optical DFG-based 60GHz signal generation by using a LiTaO3 rectangular waveguide

Yusuke Takashima, Yuto Maejima, Hiroshi Murata, Yasuyuki Okamura, Atsushi Kanno, Tetsuya Kawanishi

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Abstract

Millimeter-wave (MMW) signal generation devices using difference frequency generation (DFG) based on the second order nonlinear optical effect in a rectangular waveguide were studied in detail theoretically and experimentally. The temporal and spatial coupling process of a generated MMW signal to a TE10 mode in a rectangular waveguide embedded with a nonlinear crystal was analyzed using the finite-difference time-domain (FDTD) method. In the experiment, 60 GHz-band signals were successfully obtained from fabricated prototype devices using a rectangular waveguide embedded with z-cut LiTaO3 crystal.

Original languageEnglish
Article number20140381
Journalieice electronics express
Volume11
Issue number12
DOIs
Publication statusPublished - 2014

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Keywords

  • Difference frequency generation
  • Finite-difference time-domain method
  • Microwave photonics
  • Nonlinear optical effect
  • Polarization reversal
  • Quasi-phase matching
  • Rectangular waveguide

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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