Non-resonant Bragg scattering four-wave-mixing at near visible wavelengths in low-confinement silicon nitride waveguides
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arXiv
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| Auteurs principaux: | , , , , , , , |
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| Format: | Preprint |
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2024
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| _version_ | 1866911758221836288 |
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| author | Jaber, Nicholas Madaras, Scott Starbuck, Andrew Pomerene, Andrew Dallo, Christina Trotter, Douglas C. Gehl, Michael Otterstrom, Nils |
| author_facet | Jaber, Nicholas Madaras, Scott Starbuck, Andrew Pomerene, Andrew Dallo, Christina Trotter, Douglas C. Gehl, Michael Otterstrom, Nils |
| contents | Quantum state coherent frequency conversion processes-such as Bragg scattering four wave mixing (BSFWM)-hold promise as a flexible technique for networking heterogeneous and distant quantum systems. In this letter, we demonstrate BSFWM within an extended (1.2-m) low-confinement silicon nitride waveguide and show that this system has the potential for near unity quantum coherent frequency conversion in visible and near-visible wavelength ranges. Using sensitive heterodyne laser spectroscopy at low optical powers, we characterize the Kerr coefficient (~1.55 W^{-1} m^{-1}) and linear propagation loss (~0.0175 dB/cm) of this non-resonant waveguide system, revealing a record-high nonlinear figure of merit (NFM = gamma/alpha is approximately equal to 3.85 W^{-1}) for BSFWM of near visible light in non-resonant silicon nitride waveguides. We demonstrate how, at high yet achievable on-chip optical powers, this NFM would yield a comparatively large frequency conversion efficiency, opening the door to near-unity flexible frequency conversion without cavity enhancement and resulting bandwidth constraints. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2401_07185 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Non-resonant Bragg scattering four-wave-mixing at near visible wavelengths in low-confinement silicon nitride waveguides Jaber, Nicholas Madaras, Scott Starbuck, Andrew Pomerene, Andrew Dallo, Christina Trotter, Douglas C. Gehl, Michael Otterstrom, Nils Optics Quantum state coherent frequency conversion processes-such as Bragg scattering four wave mixing (BSFWM)-hold promise as a flexible technique for networking heterogeneous and distant quantum systems. In this letter, we demonstrate BSFWM within an extended (1.2-m) low-confinement silicon nitride waveguide and show that this system has the potential for near unity quantum coherent frequency conversion in visible and near-visible wavelength ranges. Using sensitive heterodyne laser spectroscopy at low optical powers, we characterize the Kerr coefficient (~1.55 W^{-1} m^{-1}) and linear propagation loss (~0.0175 dB/cm) of this non-resonant waveguide system, revealing a record-high nonlinear figure of merit (NFM = gamma/alpha is approximately equal to 3.85 W^{-1}) for BSFWM of near visible light in non-resonant silicon nitride waveguides. We demonstrate how, at high yet achievable on-chip optical powers, this NFM would yield a comparatively large frequency conversion efficiency, opening the door to near-unity flexible frequency conversion without cavity enhancement and resulting bandwidth constraints. |
| title | Non-resonant Bragg scattering four-wave-mixing at near visible wavelengths in low-confinement silicon nitride waveguides |
| topic | Optics |
| url | https://arxiv.org/abs/2401.07185 |