Quasi-Phase Matching with Tapered Waveguides for Terahertz Generation

Banie Abeywickrama; Ampalavanapillai Nirmalathas; Christina Lim; Ka-Lun Lee; Malin Premaratne; Malin Premaratne

2013 Conference on Lasers and Electro-Optics Pacific Rim
(Optica Publishing Group, 2013),
paper MC1_3

Quasi-Phase Matching with Tapered Waveguides for Terahertz Generation

Banie Abeywickrama, Ampalavanapillai Nirmalathas, Christina Lim, Ka-Lun Lee, and Malin Premaratne

Conference on Lasers and Electro-Optics/Pacific Rim 2013

Kyoto Japan
30 June–4 July 2013
ISBN: 978-1-4673-6475-1

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Terahertz Hight Power Sources (MC1)

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B. Abeywickrama, A. Nirmalathas, C. Lim, K. Lee, and M. Premaratne, "Quasi-Phase Matching with Tapered Waveguides for Terahertz Generation," in 2013 Conference on Lasers and Electro-Optics Pacific Rim, (Optica Publishing Group, 2013), paper MC1_3.

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Abstract

Using numerical simulations we demonstrate that the Terahertz generation efficiency is increased by using tapered waveguides. We propose piece-wise taper which facilitates quasi-phase-matching and increases THz efficiency by 2 fold compared to conventional rod waveguides.

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