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

Kyosuke Saito; Tadao Tanabe; Yutaka Oyama

doi:10.1364/AO.53.003587

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

Kyosuke Saito, Tadao Tanabe, Yutaka Oyama

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	3587-3592
Number of pages	6
Journal	Applied Optics
Issue number	17
DOIs	https://doi.org/10.1364/AO.53.003587
Publication status	Published - 2014 Jun 10
Externally published	Yes

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Engineering (miscellaneous)
Electrical and Electronic Engineering

Access to Document

10.1364/AO.53.003587

Cite this

@article{87ec2a569b3c4a448409a1249c6e171c,

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

abstract = "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.",

author = "Kyosuke Saito and Tadao Tanabe and Yutaka Oyama",

year = "2014",

month = jun,

day = "10",

doi = "10.1364/AO.53.003587",

language = "English",

pages = "3587--3592",

journal = "Applied Optics",

issn = "0003-6935",

publisher = "The Optical Society",

number = "17",

}

TY - JOUR

T1 - Design of a GaP/Si composite waveguide for CW terahertz wave generation via difference frequency mixing

AU - Saito, Kyosuke

AU - Tanabe, Tadao

AU - Oyama, Yutaka

PY - 2014/6/10

Y1 - 2014/6/10

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=84942368061&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84942368061&partnerID=8YFLogxK

U2 - 10.1364/AO.53.003587

DO - 10.1364/AO.53.003587

M3 - Article

AN - SCOPUS:84942368061

SN - 0003-6935

SP - 3587

EP - 3592

JO - Applied Optics

JF - Applied Optics

IS - 17

ER -

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

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this