Field quantization in a waveguide with freeform cladding

Sergey I. Kharitonov; Svetlana N. Khonina; Nikolay L. Kazanskiy

doi:10.1117/12.2593197

22 June 2021 Field quantization in a waveguide with freeform cladding

Sergey I. Kharitonov, Svetlana N. Khonina, Nikolay L. Kazanskiy

Proceedings Volume 11793, Optical Technologies for Telecommunications 2020; 117930R (2021) https://doi.org/10.1117/12.2593197
Event: Eighteenth International Scientific and Technical Conference "Optical Technologies for Communications", 2020, Samara, Russian Federation

Abstract

This work deals with a hot topic of using quantum approaches in advanced telecommunications. Here, the major trend involves exploiting a flow of individual photons for signal transmission, because the photon is impossible to split, measure, copy, or imperceptibly delete. Such manipulations destroy the photon, prohibiting it to reach the recipient. Before the field quantization can be implemented, a problem of the electromagnetic field propagation needs first to be solved within classical electrodynamics, with dynamic quantities then replaced by the corresponding operators. This work describes a procedure for the electromagnetic field quantization in a waveguide with superconducting walls. In an optical fiber with inhomogeneous refractive index, the modes are shown to be non-orthogonal, so that the field can only approximately be quantized using the basis of waveguide modes. Expressions for operators of the electric and magnetic fields are derived, which may prove helpful for calculating both dynamic and other characteristics of the electromagnetic field, including nonclassical states of the electromagnetic field.

Citation Download Citation

Sergey I. Kharitonov, Svetlana N. Khonina, and Nikolay L. Kazanskiy "Field quantization in a waveguide with freeform cladding", Proc. SPIE 11793, Optical Technologies for Telecommunications 2020, 117930R (22 June 2021); https://doi.org/10.1117/12.2593197

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