Second harmonic generation in nano-structured thin-film lithium niobate waveguides

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal

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Author(s)

  • Xiao XIONG
  • Nicolas ANDRADE
  • Vivek VENKATARAMAN
  • Xi-Feng REN
  • Guang-Can GUO
  • Marko LONČAR

Detail(s)

Original languageEnglish
Pages (from-to)6963-6973
Journal / PublicationOptics Express
Volume25
Issue number6
Online published16 Mar 2017
Publication statusPublished - 20 Mar 2017
Externally publishedYes

Abstract

Integrated thin-film lithium niobate platform has recently emerged as a promising candidate for next-generation, high-efficiency wavelength conversion systems that allow dense packaging and mass-production. Here we demonstrate efficient, phase-matched second harmonic generation in lithographically-defined thin-film lithium niobate waveguides with sub-micron dimensions. Both modal phase matching in fixed-width waveguides and quasiphase matching in periodically grooved waveguides are theoretically proposed and experimentally demonstrated. Our low-loss (∼3.0 dB/cm) nanowaveguides possess normalized conversion efficiencies as high as 41% W-1cm-2.

Research Area(s)

  • Optical devices, Micro-optical devices, Nonlinear optical devices

Citation Format(s)

Second harmonic generation in nano-structured thin-film lithium niobate waveguides. / WANG, Cheng; XIONG, Xiao; ANDRADE, Nicolas; VENKATARAMAN, Vivek; REN, Xi-Feng; GUO, Guang-Can; LONČAR, Marko.

In: Optics Express, Vol. 25, No. 6, 20.03.2017, p. 6963-6973.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journal