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Pré-Publication, Document De Travail Année : 2023

Optical parametric amplifiers in silicon nitride nanowires integrated with 2D graphene oxide thin films

Résumé

Optical parametric amplification (OPA) represents a powerful solution to achieve broadband amplification in wavelength ranges beyond the scope of conventional gain media, for generating high-power optical pulses, optical microcombs, entangled photon pairs and a wide range of other applications. Here, we demonstrate optical parametric amplifiers based on silicon nitride (Si3N4) waveguides integrated with two-dimensional (2D) layered graphene oxide (GO) films. We achieve precise control over the thickness, length, and position of the GO films using a transfer-free, layerby-layer coating method combined with accurate window opening in the chip cladding using photolithography. Detailed OPA measurements with a pulsed pump for the fabricated devices with different GO film thicknesses and lengths show a maximum parametric gain of ~24.0 dB, representing a ~12.2 dB improvement relative to the device without GO. We perform a theoretical analysis of the device performance, achieving good agreement with experiment and showing that there is substantial room for further improvement. This work demonstrates a new way of achieving high photonic integrated OPA performance by incorporating 2D materials.
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Dates et versions

hal-04236527 , version 1 (11-10-2023)

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  • HAL Id : hal-04236527 , version 1

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David Moss. Optical parametric amplifiers in silicon nitride nanowires integrated with 2D graphene oxide thin films. 2023. ⟨hal-04236527⟩
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