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Simulations

FETI’s Simulation Groups would be glad to support your business through innovative and problem-oriented computational models! Our fields of expertise include: 
semiconductor physics, silicon photonics, fiber optics,
signal processing related solutions and related fields,
telecommunications, wireless energy transfer,
optical and semiconductor devices, 
heat transfer analysis,
solid and fluid mechanics, including multi-phase flow,
diffusion models and transport problems,
molecular dynamics simulations.
Please read the introduction of the two groups below and contact us for more information!

General Simulation Group
Design and Applied Mechanics Group

Pioneering Simulation Solutions for Advanced Research

The General Simulation Group is dedicated to supporting product and process development through innovative and problem-oriented computational models. Our research primarily focuses on semiconductor physics, silicon photonics, fiber optics, signal processing related solutions and related fields, including telecommunications, wireless energy transfer, and optical and semiconductor devices. Our expertise also extends to thermal analysis, diffusion models, and molecular dynamics simulations.

Competencies and Expertise

Our multidisciplinary team consists of Physicists, Engineering Physicists, and Electrical Engineers, providing the practical knowledge needed to explore and solve complex R&D challenges. With 40% of the team holding PhD degrees, we guarantee high-quality research and productive outcomes. Our key competencies include:
Telecommunications: Specializing in optical fiber design, (linear and nonlinear) optical pulse propagation and amplification calculations in rear-earth doped fibers or in Raman amplifiers, antenna design, and algorithm development for signal processing.
Optical and Semiconductor Devices: Expertise in semiconductor lasers, VCSEL, DFB lasers, and other optical components.
Wireless Energy Transfer: Research and development in wireless power transfer technologies, electro-magnetic field simulations
To execute our research tasks, we utilize a variety of software tools, categorized as follows:
Licensed Software: COMSOL MultiPhysics, MATLAB
Open-Source Software: LAMMPS, OpenFOAM, Octave, Python, etc.
In-House Developed Software: CRTD, OptiCo, PropSim, VOTES, RamanAmp etc.
Our high-performance computing resources, equipped with multi-core architectures, are essential for handling computationally demanding simulations. Additionally, we validate our simulation models through measurements conducted in FETI laboratories, ensuring reliable and practical solutions for our partners.

Recent Publications

K. Mukasa, T. Mihálffy, and Z. Várallyay, “Optimizations of thin glass diameter fibers,” Optical Fiber Communication Conference (OFC) 2021.
Z. Várallyay, T. Mihálffy, S. Bilicz, et al., “Microbending Loss Properties of Different Fiber Designs,” OFC 2021.
R. Séfel, P. Nyakas, T. Kárpáti, et al., “Simulation-assisted design of a compact tunable phase-modulated DBR/ring laser diode,” SPIE 2021.
Z. Várallyay, T. Mihálffy, and K. Mukasa, "Comparison of Different Deformation Functions Modeling Micro-bending Loss of Optical Fibers on Sandpaper Test," in Optical Fiber Communication Conference (OFC) 2022 (Optica Publishing Group, 2022), p. M4E.3.
Z. Várallyay, K. Mukasa, et al., “Advanced Simulation Technologies for Next-Generation Transmission Fibers,” Furukawa Review 53, 2022.
Z. Várallyay, Z. Papp, et al., “PropSim v1.0: A Convenient Way to Model Light Propagation in Optical Fibers,” Furukawa Review 53, 2022.
Lívia Fejérvári, Sándor Bilicz, Szabolcs Gyimóthy, József Pávó, Gábor Varga, Zoltán Várallyay, Yusuke Yamada, Takahiro Shimura, Hiroshi Orito, Yoshifumi Azuma, "Electromagnetic Modeling of Coils Made of Twisted Litz Wire by Combining Finite Element Simulation and Circuit Laws," International Journal of Applied Electromagnetics and Mechanics 70, 21-31 (2022).
Z. Papp, Z. Várallyay, R. Sugizaki, S. Takasaka, N. Ohishi, J. Yoshida, D. Ogata, S. Hayashi, and T. Kimura, "Efficient Numerical Scheme for Simulating Complex Raman Amplifiers in Optical Telecommunication Systems," Furukawa Electric Review 55, 46–49 (2024).

Design and Applied Mechanics

Innovative Engineering for a Wide Range of Applications

The Design and Applied Mechanics Group is dedicated to supporting development by applying our deep knowledge of solid mechanics, fluid mechanics, and related areas. We believe that combining numerical simulation, experimental studies, and theoretical considerations leads to the most effective solutions to complex challenges.

Competencies and Expertise

Over the years, we have collaborated with numerous research and business units within the Furukawa Electric Group, focusing on the following areas:

Solid Mechanics: Specialization in linear and nonlinear stress analyses, hyperelasticity, plasticity, and material modeling. Vibration analysis by experiments and simulation.
Fluid Mechanics: Expertise in computational fluid mechanics including laminar and turbulent flow simulation, multi-phase flow ,and transport problems.
Heat Transfer: Proficiency in phase change modeling, temperature measurements (platinum resistances, thermocouples), and thermal simulation.
Experimental Design: Skills in designing experimental and laboratory devices, some of them in use in other group companies.
We utilize a range of software packages, including commercial, open-source, and in-house-developed codes, providing flexibility in choosing the right tools for each problem.

Recent Publications

Jun Furukawa, Attila Palfalvi, Tamas Poloskei: Finite element simulation of deformation of lead-acid battery positive plates. 20th Asian Battery Conference, 2023.
Attila Palfalvi, et al., “Finite element simulation of deformation of battery electrodes,” Furukawa Battery Technical News 2022.
Attila Kossa, et al., “Finite element simulation of deformation of battery grid plates,” Furukawa Battery Technical News 2020.
Attila Palfalvi, Drew W. Hazelton: “Analysis of winding and cooling stress of a HTS coil,” HTS Modeling Workshop 2016.
Furukawa Electric Institute of Technology Ltd. is a wholly-owned subsidiary of the Furukawa Electric Company (FEC) of Japan and was established in Budapest in 1991. Furukawa Electric is committed to research & development and has throughout its history been at the forefront of technological innovation.
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