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Controlled spectral enhancement in supercontinuum generation by quasi-phase matching Si3N4 waveguide

Yijun Yang,Victor Turpaud,Christian Lafforgue,Quentin Wilmart,Daniele Melati,Delphine Marris-Morini,Carlos Alonso-Ramos,Bertrand Szelag,Laurent Vivien

2024 IEEE Silicon Photonics Conference (SiPhotonics)（2024）

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Abstract
Supercontinuum generation (SCG) is the main way to build broadband light sources. Quasi-phase-matching (QPM) offers SCG more flexibility, but faces power and fabrication challenges. This study uses a Si 3 N 4 waveguide to achieve efficient QPM-SCG with lower power demands and tailored spectral bandwidth, advancing power-efficient customizable broadband sources.
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Key words
Supercontinuum Generation,Spectral Enhancement,Si3N4 Waveguide,Broadband Light Source,Fabrication Challenges,Peak Power,Pump Power,Phase-matching Condition,Waveguide Width,Group Velocity Dispersion
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