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17 March 2023 Fully on-chip photonic turnkey quantum light source of two- and high-dimensional entangled photons
Hatam Mahmudlu, Raktim Haldar, Robert Johanning, Anahita Khodadad Kashi, Albert van Rees, Jörn P. Epping, Klaus-J. Boller, Michael Kues
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Proceedings Volume PC12424, Integrated Optics: Devices, Materials, and Technologies XXVII; PC124240E (2023) https://doi.org/10.1117/12.2648343
Event: SPIE OPTO, 2023, San Francisco, California, United States
Abstract
We demonstrate the first fully on-chip electrically-pumped laser-integrated quantum photonic source, which consists of a laser cavity, an InP gain section, and a Vernier filtering stage. This sub-millimeter-sized hybrid chip generates high-quality, low-noise (CAR ~80) entangled photon states with a remarkably high pair detection rate (~620 Hz) over four resonant modes within the C-band. We confirmed the realization of high-dimensional entangled states with fidelity of ~ 0.99 and visibility of ~ 96%. This fully integrated, practical, and field-deployable quantum light source brings scalability to applications ranging from quantum processing circuits, quantum internet to quantum satellite systems.
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Hatam Mahmudlu, Raktim Haldar, Robert Johanning, Anahita Khodadad Kashi, Albert van Rees, Jörn P. Epping, Klaus-J. Boller, and Michael Kues "Fully on-chip photonic turnkey quantum light source of two- and high-dimensional entangled photons", Proc. SPIE PC12424, Integrated Optics: Devices, Materials, and Technologies XXVII, PC124240E (17 March 2023); https://doi.org/10.1117/12.2648343
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KEYWORDS
Light sources
Photons
Microrings
Nonlinear filtering
Optical filters
Quantum efficiency
Terahertz radiation
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