Design of a GaP/Si composite waveguide for CW terahertz wave generation via difference frequency mixing

Kyosuke Saito, Tadao Tanabe, Yutaka Oyama

研究成果: Article査読

12 被引用数 (Scopus)

抄録

We design a GaP/Si composite waveguide to achieve efficient terahertz (THz) wave generation under collinear phase-matched difference frequency mixing (DFM) between near-infrared light sources. This waveguide structure provides a strong mode confinement of both near-infrared sources and THz wave, resulting in an efficient mode overlapping. The numerical results show that the waveguide can produce guided THz wave (5.93 THz) with a power conversion efficiency of 6.6 × 10-4W-1. This value is larger than previously obtained with the bulk GaP crystal: 0.5 × 10-9W-1[J. Lightwave Technol. 27, 3057 (2009)]. Our proposed composite waveguide can be achieved by bridging the telecom wavelength and THz frequency region.

本文言語English
ページ(範囲)3587-3592
ページ数6
ジャーナルApplied Optics
17
DOI
出版ステータスPublished - 2014 6 10
外部発表はい

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 工学(その他)
  • 電子工学および電気工学

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