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Design considerations for quasi-phase-matching in doubly resonant Lithium Niobate hexagonal micro-resonators

Design considerations for quasi-phase-matching in doubly resonant Lithium Niobate hexagonal micro-resonators
Design considerations for quasi-phase-matching in doubly resonant Lithium Niobate hexagonal micro-resonators
Fabrication capabilities of high optical quality hexagonal superstructures by chemical etching of inverted ferroelectric domains in Lithium Niobate platform suggests a route for successful implementation of compact hexagonal microcavities. Such nonlinear optical hexagonal micro-resonators proposed as a platform for second harmonic generation (SHG) by the combined mechanisms of total internal reflection (TIR) and quasi-phase-matching (QPM). The proposed scheme for SHG via TIR-QPM in a hexagonal microcavity can improve the efficiency and also the compactness of SHG devices compared to traditional linear-type based devices. A simple theoretical model based on six-bounce trajectory and phase matching conditions was capable for obtaining the optimal cavity size. Furthermore numerical simulation results based on finite difference time domain (FDTD) Beam Propagation Method (BPM) analysis confirmed the solutions obtained by demonstrating resonant operation of the microcavity for the second harmonic wave produced by TIR-QPM. Design aspects, optimization issues and characteristics of the proposed nonlinear device are presented.
Lithium Niobate, nonlinear, total-internal-reflection, quasi-phase-matching, microresonator, microcavity, second harmonic generation, simulation, optical circuits
2040-8986
Sono, Tleyane J.
06258e0e-3de8-4480-a3ff-ca5cc218f0db
Riziotis, Christos
84a8140d-44bb-4be4-b50d-5428087058c9
Mailis, Sakellaris
233e0768-3f8d-430e-8fdf-92e6f4f6a0c4
Eason, Robert W.
e38684c3-d18c-41b9-a4aa-def67283b020
Sono, Tleyane J.
06258e0e-3de8-4480-a3ff-ca5cc218f0db
Riziotis, Christos
84a8140d-44bb-4be4-b50d-5428087058c9
Mailis, Sakellaris
233e0768-3f8d-430e-8fdf-92e6f4f6a0c4
Eason, Robert W.
e38684c3-d18c-41b9-a4aa-def67283b020

Sono, Tleyane J., Riziotis, Christos, Mailis, Sakellaris and Eason, Robert W. (2017) Design considerations for quasi-phase-matching in doubly resonant Lithium Niobate hexagonal micro-resonators. Journal of Optics, 19. (doi:10.1088/2040-8986/aa8104).

Record type: Article

Abstract

Fabrication capabilities of high optical quality hexagonal superstructures by chemical etching of inverted ferroelectric domains in Lithium Niobate platform suggests a route for successful implementation of compact hexagonal microcavities. Such nonlinear optical hexagonal micro-resonators proposed as a platform for second harmonic generation (SHG) by the combined mechanisms of total internal reflection (TIR) and quasi-phase-matching (QPM). The proposed scheme for SHG via TIR-QPM in a hexagonal microcavity can improve the efficiency and also the compactness of SHG devices compared to traditional linear-type based devices. A simple theoretical model based on six-bounce trajectory and phase matching conditions was capable for obtaining the optimal cavity size. Furthermore numerical simulation results based on finite difference time domain (FDTD) Beam Propagation Method (BPM) analysis confirmed the solutions obtained by demonstrating resonant operation of the microcavity for the second harmonic wave produced by TIR-QPM. Design aspects, optimization issues and characteristics of the proposed nonlinear device are presented.

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Accepted/In Press date: 20 July 2017
e-pub ahead of print date: 21 August 2017
Keywords: Lithium Niobate, nonlinear, total-internal-reflection, quasi-phase-matching, microresonator, microcavity, second harmonic generation, simulation, optical circuits

Identifiers

Local EPrints ID: 412732
URI: https://eprints.soton.ac.uk/id/eprint/412732
ISSN: 2040-8986
PURE UUID: 9aacb2e6-30a3-411b-9fe0-3195f7868647
ORCID for Sakellaris Mailis: ORCID iD orcid.org/0000-0001-8100-2670
ORCID for Robert W. Eason: ORCID iD orcid.org/0000-0001-9704-2204

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Date deposited: 18 Sep 2017 16:31
Last modified: 14 Mar 2019 05:43

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