Silicon core fibers: A new platform for quantum light generation
Davide Rizzotti, Stefano Signorini, Clarissa Harvey, Michael Fokine, Valerio Pruneri; Silicon core fibers: A new platform for quantum light generation. APL Photonics 1 September 2024; 9 (9): 091301. https://doi.org/10.1063/5.0220647
Abstract
Integrated quantum sources are proving to be the most effective technology of sources for scalable quantum applications. A platform that satisfies all the requirements has not prevailed yet. In this framework, we report, to the best of our knowledge, the first demonstration of a photon pair source in a silicon core fiber. The fiber, only 58 mm long, works at room temperature and shows an intrinsic brightness of 570 kHz/nm/mW2 and a coincidence-to-accidental ratio of 133 ± 2 at around 1.55 μm wavelength. The low propagation losses of the platform, dB/cm in our source, pave the way for effective fiber-based quantum sources in the telecom band. A comparison with state-of-the-art further confirms the potential of this platform for future applications, especially in the field of quantum communication.
This project has received funding from the European Union’s Horizon 2020 research and innovation programme under Marie Sklodowska-Curie grant agreement nº 956419
