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

Cheng WANG; Xiao XIONG; Nicolas ANDRADE; Vivek VENKATARAMAN; Xi-Feng REN; Guang-Can GUO; Marko LONČAR

doi:10.1364/OE.25.006963

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

Cheng WANG
, Xiao XIONG
, Nicolas ANDRADE
, Vivek VENKATARAMAN
, Xi-Feng REN
, Guang-Can GUO
, Marko LONČAR^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

272 Citations (Scopus)

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.

Original language	English
Pages (from-to)	6963-6973
Journal	Optics Express
Volume	25
Issue number	6
Online published	16 Mar 2017
DOIs	https://doi.org/10.1364/OE.25.006963
Publication status	Published - 20 Mar 2017
Externally published	Yes

Research Keywords

Optical devices
Micro-optical devices
Nonlinear optical devices

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title = "Second harmonic generation in nano-structured thin-film lithium niobate waveguides",

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.",

keywords = "Optical devices, Micro-optical devices, Nonlinear optical devices",

author = "Cheng WANG and Xiao XIONG and Nicolas ANDRADE and Vivek VENKATARAMAN and Xi-Feng REN and Guang-Can GUO and Marko LON{\v C}AR",

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TY - JOUR

T1 - Second harmonic generation in nano-structured thin-film lithium niobate waveguides

AU - WANG, Cheng

AU - XIONG, Xiao

AU - ANDRADE, Nicolas

AU - VENKATARAMAN, Vivek

AU - REN, Xi-Feng

AU - GUO, Guang-Can

AU - LONČAR, Marko

PY - 2017/3/20

Y1 - 2017/3/20

N2 - 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.

AB - 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.

KW - Optical devices

KW - Micro-optical devices

KW - Nonlinear optical devices

UR - https://www.scopus.com/pages/publications/85015871127

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85015871127&origin=recordpage

U2 - 10.1364/OE.25.006963

DO - 10.1364/OE.25.006963

M3 - RGC 21 - Publication in refereed journal

SN - 1094-4087

VL - 25

SP - 6963

EP - 6973

JO - Optics Express

JF - Optics Express

IS - 6

ER -

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

Abstract

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