Development of a MATLAB-COMSOL Integrated GUI for Designing Multimode THz Fibers

Education Level

Undergraduate

Faculty Advisor(s)

Professor Ahmet Akosman

Academic Department(s)

Engineering, Computing and Construction Management

Comments

This research was presented at the 2024 Rhode Island Summer Undergraduate Research Symposium, held on Friday, July 26, at the University of Rhode Island and supported by NASA RI Space Grant

Symposium Date

2024

Abstract

The THz region, which spans from 0.1 to 10 THz, holds significant potential for applications intelecommunications, medical imaging, and spectroscopy due to its unique properties, such as low photon energy and high penetration depth. The overall goal of this research project is to design optical fibers for use in the terahertz region, run them through electromagnetic Multiphysics COMSOL simulations, and to fabricate the fibers using a 3D resin printer. COMSOL is powerful in computing intricate Multiphysics equations, however it is difficult and tedious to manually set up a simulation within the software. Thus, this project focuses on creating a graphical user interface (GUI) to integrate MATLAB and COMSOL, using COMSOL’s live link server. This GUI allows the user to input a series of parameters for the geometry and material of the fiber, and the instructions for a simulation, then the GUI can then output data from the simulation; both numerically and graphically. With the developed GUI, a unique multimode THz negative curvature fiber design based on UV-cured photosensitive resin is proposed and analyzed in detail to reach over 100 modes below the figure of merit loss of 1 dB/m for potential 6G communication protocols.

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