Second-order nonlinear frequency conversion in InGaP-on-insulator waveguides

Lucas Christesen Ahler; Emil Zanchetta Ulsig; Eric J.  Stanton; Pedro Henrique Godoy; Skyler K. Weight; Nima Nader; Alexandre Z. Leger; Iterio Degli Eredi; Richard P. Mirin; Nick Volet

doi:10.1364/OL.555573

Second-order nonlinear frequency conversion in InGaP-on-insulator waveguides

Lucas Christesen Ahler, Emil Zanchetta Ulsig, Eric J. Stanton, Pedro Henrique Godoy, Skyler K. Weight, Nima Nader, Alexandre Z. Leger, Iterio Degli Eredi, Richard P. Mirin, Nick Volet

Department of Electrical and Computer Engineering - Biomedical Engineering

Research output: Contribution to journal/Conference contribution in journal/Contribution to newspaper › Journal article › Research › peer-review

Abstract

InGaP integrated on a silicon substrate has emerged as a promising platform for nonlinear and quantum photonics, offering high nonlinear conversion efficiency and scalability with silicon-based fabrication infrastructure. This work presents an experimental demonstration of sum- and difference-frequency generation (DFG) in InGaP waveguides. We generate light at 930 nm, 1550 nm, and 2325 nm, achieving conversion efficiencies of 4.5 ± 0.5 W⁻¹, 1.4 ± 0.2 W⁻¹, and 0.43 ± 0.04 W⁻¹, respectively. These results highlight the potential of InGaP-on-insulator for advanced photonic applications, including broadband infrared light generation and quantum-frequency conversion. We discuss a roadmap for this technology to achieve even broader wavelength coverage, higher efficiencies, and quantum-frequency conversion of single photons.

Original language	English
Journal	Optics Letters
Volume	50
Issue	11
Pages (from-to)	3652-3655
Number of pages	4
ISSN	0146-9592
DOIs	https://doi.org/10.1364/OL.555573
Publication status	Published - 1 Jun 2025

Keywords

Nonlinear Optics
InGaP-on-insulator
Photonics
Second-harmonic generation (SHG)
Sum-frequency generation (SFG)
Difference-frequency generation (DFG)

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10.1364/OL.555573

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Cite this

@article{0312c931bc264f80951ed8710543c749,

title = "Second-order nonlinear frequency conversion in InGaP-on-insulator waveguides",

abstract = "InGaP integrated on a silicon substrate has emerged as a promising platform for nonlinear and quantum photonics, offering high nonlinear conversion efficiency and scalability with silicon-based fabrication infrastructure. This work presents an experimental demonstration of sum- and difference-frequency generation (DFG) in InGaP waveguides. We generate light at 930 nm, 1550 nm, and 2325 nm, achieving conversion efficiencies of 4.5 ± 0.5 W−1, 1.4 ± 0.2 W−1, and 0.43 ± 0.04 W−1, respectively. These results highlight the potential of InGaP-on-insulator for advanced photonic applications, including broadband infrared light generation and quantum-frequency conversion. We discuss a roadmap for this technology to achieve even broader wavelength coverage, higher efficiencies, and quantum-frequency conversion of single photons.",

keywords = "Nonlinear Optics, InGaP-on-insulator, Photonics, Second-harmonic generation (SHG), Sum-frequency generation (SFG), Difference-frequency generation (DFG)",

author = "Ahler, {Lucas Christesen} and Ulsig, {Emil Zanchetta} and Stanton, {Eric J.} and Godoy, {Pedro Henrique} and Weight, {Skyler K.} and Nima Nader and Leger, {Alexandre Z.} and {Degli Eredi}, Iterio and Mirin, {Richard P.} and Nick Volet",

year = "2025",

month = jun,

day = "1",

doi = "10.1364/OL.555573",

language = "English",

volume = "50",

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journal = "Optics Letters",

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T1 - Second-order nonlinear frequency conversion in InGaP-on-insulator waveguides

AU - Ahler, Lucas Christesen

AU - Ulsig, Emil Zanchetta

AU - Stanton, Eric J.

AU - Godoy, Pedro Henrique

AU - Weight, Skyler K.

AU - Nader, Nima

AU - Leger, Alexandre Z.

AU - Degli Eredi, Iterio

AU - Mirin, Richard P.

AU - Volet, Nick

PY - 2025/6/1

Y1 - 2025/6/1

N2 - InGaP integrated on a silicon substrate has emerged as a promising platform for nonlinear and quantum photonics, offering high nonlinear conversion efficiency and scalability with silicon-based fabrication infrastructure. This work presents an experimental demonstration of sum- and difference-frequency generation (DFG) in InGaP waveguides. We generate light at 930 nm, 1550 nm, and 2325 nm, achieving conversion efficiencies of 4.5 ± 0.5 W−1, 1.4 ± 0.2 W−1, and 0.43 ± 0.04 W−1, respectively. These results highlight the potential of InGaP-on-insulator for advanced photonic applications, including broadband infrared light generation and quantum-frequency conversion. We discuss a roadmap for this technology to achieve even broader wavelength coverage, higher efficiencies, and quantum-frequency conversion of single photons.

AB - InGaP integrated on a silicon substrate has emerged as a promising platform for nonlinear and quantum photonics, offering high nonlinear conversion efficiency and scalability with silicon-based fabrication infrastructure. This work presents an experimental demonstration of sum- and difference-frequency generation (DFG) in InGaP waveguides. We generate light at 930 nm, 1550 nm, and 2325 nm, achieving conversion efficiencies of 4.5 ± 0.5 W−1, 1.4 ± 0.2 W−1, and 0.43 ± 0.04 W−1, respectively. These results highlight the potential of InGaP-on-insulator for advanced photonic applications, including broadband infrared light generation and quantum-frequency conversion. We discuss a roadmap for this technology to achieve even broader wavelength coverage, higher efficiencies, and quantum-frequency conversion of single photons.

KW - Nonlinear Optics

KW - InGaP-on-insulator

KW - Photonics

KW - Second-harmonic generation (SHG)

KW - Sum-frequency generation (SFG)

KW - Difference-frequency generation (DFG)

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U2 - 10.1364/OL.555573

DO - 10.1364/OL.555573

M3 - Journal article

SN - 0146-9592

VL - 50

SP - 3652

EP - 3655

JO - Optics Letters

JF - Optics Letters

IS - 11

ER -

Second-order nonlinear frequency conversion in InGaP-on-insulator waveguides

Abstract

Keywords

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