Integrated multi-mode waveguide devices for quantum communication

Ramakrishnan, RK and Mishra, A and Kumar, P and Kaushalram, A and Samad, SA and Hegde, G and Talabattula, S (2023) Integrated multi-mode waveguide devices for quantum communication. In: Journal of Optics (India) .

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Abstract

Quantum information processing, or more specifically, quantum communication, is the future of information technology. However, this mode of communication faces several challenges for its practical implementation, such as compatibility with the current integrated optics technology. This paper conceptually implements quantum communication at the device level using integrated optics. We implement the quantum communication in a waveguide-based circuit using an indigenously developed high-dimensional quantum key distribution protocol. High-dimensional quantum key distribution is a technique that provides higher information efficiency compared to conventional quantum key distribution systems. We simulate this communication protocol using a device fabricated using silicon-on-insulator material. We have used this material since its fabrication technology is well established for integrated optics. We analytically show that integrated optics technology can be used to implement conventional quantum key distribution. © 2023, The Author(s), under exclusive licence to The Optical Society of India.

Item Type:	Journal Article
Publication:	Journal of Optics (India)
Publisher:	Springer
Additional Information:	The copyright for this article belongs to Springer.
Keywords:	Quantum communication; Quantum cryptography; Quantum optics; Silicon on insulator technology, 'current; BB84 protocol; High-dimensional; High-dimensional QKD; Higher-dimensional; Integrated optics technology; Multi-mode waveguides; QKD; Quantum information processing; Waveguide device, Integrated optics
Department/Centre:	Division of Electrical Sciences > Electrical Communication Engineering Division of Interdisciplinary Sciences > Centre for Biosystems Science and Engineering
Date Deposited:	04 Mar 2024 08:27
Last Modified:	04 Mar 2024 08:27
URI:	https://eprints.iisc.ac.in/id/eprint/84295

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