LiNbO3 and AlGaAs on-insulator platforms for second-harmonic generation: comparison and perspectives
LiNbO3 and AlGaAs on-insulator platforms for second-harmonic generation: comparison and perspectives
The rise of aluminum gallium arsenide on-insulator (AlGaAsOI) and lithium niobate on-insulator (LNOI) platforms presents new opportunities for advancing on-chip and ultracompact nonlinear photonic devices. In this study, we investigate theoretically and via numerical simulations second-harmonic generation (SHG) in AlGaAsOI and LNOI waveguides across a wide range of pulse widths, from the subpicosecond to the continuous-wave regime, and peak power levels spanning from milliwatts to hundreds of watts. Our research aims to identify optimal time and power regimes for achieving high SHG conversion efficiency, exploring the detrimental impact of linear and nonlinear losses as well as dispersion effects. Additionally, we assess the performance of SHG against manufacturing errors and surface roughness, comparing our findings with state-of-the-art solutions. These results offer insights into the robustness and potential applications of SHG in these advanced photonic platforms.
Haines, Jack
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Naik, Pooja Uday
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Guasoni, Massimiliano
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Gandolfi, Marco
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13 January 2025
Haines, Jack
19efe0f2-adfe-46a1-8a63-922211ece239
Naik, Pooja Uday
f7d0c26e-559c-4262-896b-75df9eb94ede
Guasoni, Massimiliano
3f11af99-0e78-46cf-b34d-9c733aee1fa7
Gandolfi, Marco
e4ec2009-806a-4d88-a04c-651ef7c4bd0f
Haines, Jack, Naik, Pooja Uday, Guasoni, Massimiliano and Gandolfi, Marco
(2025)
LiNbO3 and AlGaAs on-insulator platforms for second-harmonic generation: comparison and perspectives.
Physical Review A, 111 (1), [013515].
(doi:10.1103/PhysRevA.111.013515).
Abstract
The rise of aluminum gallium arsenide on-insulator (AlGaAsOI) and lithium niobate on-insulator (LNOI) platforms presents new opportunities for advancing on-chip and ultracompact nonlinear photonic devices. In this study, we investigate theoretically and via numerical simulations second-harmonic generation (SHG) in AlGaAsOI and LNOI waveguides across a wide range of pulse widths, from the subpicosecond to the continuous-wave regime, and peak power levels spanning from milliwatts to hundreds of watts. Our research aims to identify optimal time and power regimes for achieving high SHG conversion efficiency, exploring the detrimental impact of linear and nonlinear losses as well as dispersion effects. Additionally, we assess the performance of SHG against manufacturing errors and surface roughness, comparing our findings with state-of-the-art solutions. These results offer insights into the robustness and potential applications of SHG in these advanced photonic platforms.
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LiN_vs_AlG_Jack_haines_copy
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Accepted/In Press date: 21 November 2024
Published date: 13 January 2025
Identifiers
Local EPrints ID: 501753
URI: http://eprints.soton.ac.uk/id/eprint/501753
ISSN: 1050-2947
PURE UUID: af450f54-89b6-4662-a4d1-96d8e0d7c388
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Date deposited: 09 Jun 2025 18:01
Last modified: 10 Jun 2025 02:11
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Contributors
Author:
Jack Haines
Author:
Pooja Uday Naik
Author:
Massimiliano Guasoni
Author:
Marco Gandolfi
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