Vinogradova, I.L.; Gizatulin, A.R.; Meshkov, I.K.; Bourdine, A.V.; Tiwari, M. A Nonlinear Radio-Photon Conversion Device. Photonics 2022, 9, 417, doi:10.3390/photonics9060417.
Vinogradova, I.L.; Gizatulin, A.R.; Meshkov, I.K.; Bourdine, A.V.; Tiwari, M. A Nonlinear Radio-Photon Conversion Device. Photonics 2022, 9, 417, doi:10.3390/photonics9060417.
Vinogradova, I.L.; Gizatulin, A.R.; Meshkov, I.K.; Bourdine, A.V.; Tiwari, M. A Nonlinear Radio-Photon Conversion Device. Photonics 2022, 9, 417, doi:10.3390/photonics9060417.
Vinogradova, I.L.; Gizatulin, A.R.; Meshkov, I.K.; Bourdine, A.V.; Tiwari, M. A Nonlinear Radio-Photon Conversion Device. Photonics 2022, 9, 417, doi:10.3390/photonics9060417.
Abstract
The article analyzes existing materials and structures with quadratic-nonlinear optical properties that can be used to generate a difference frequency in the terahertz and sub-terahertz frequency ranges. The principle of constructing a nonlinear optical-radio converter, based on an optical focon (a focusing cone), is proposed. Based on the assumption that this focon can be implemented from the metal-organic framework (MOF), we propose a technique for modeling its parameters. The mathematical model of the process of propagation and nonlinear interaction of waves inside the focon is based on a simplification of the nonlinear wave equation. Within the framework of the developed model, the following parameters are approximately determined: the 3D gradient of the linear refractive index and the function determining the geometric profile of the focon, which provide a few-mode-based generation of the difference frequency.
Keywords
radio photonics; radio-over-fiber; orbital angular momentum; quadratic-nonlinear structure; difference frequency generation
Subject
Engineering, Electrical and Electronic Engineering
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.