CST – Computer Simulation Technology

A Thermally-Tuned PIC with External Light Coupling: Design and Layout

Photonic Integrated Circuits (PICs) are becoming increasingly important in many areas including communications, remote sensing and medical applications.

Designers active in this field rely on simulation to study and optimize a circuit, even before the prototype stage. Simulating such circuits can be challenging due to their large size in relation to the wavelength of interest and need for multiphysics simulation. Another important challenge in all PICs is efficiently coupling the external light into the chip. The two major methods are surface coupling and edge coupling.

In this eSeminar, Dr. Kabiri from 4Catalyzer will present how a diffraction grating coupler for surface coupling can be designed and optimized using a combination of Luceda Photonics IPKISS and CST Studio Suite®. High Performance Computation (HPC) is used to speed up simulation of the ultra-large simulation domain and find the optimum performance. ...

This eSeminar will also show how parameters characterizing active devices, such as a thermally-tuned ring resonator, can be automatically extracted from simulation using a similar workflow.


  • Ali Kabiri

    Dr. Kabiri is currently the lead of photonics design at 4Catalyzer Inc. He received his Ph.D. from the University of Waterloo department of electrical engineering and computer sciences in 2010 on Metamaterial and its application on microwave frequencies. He performed a postdoctoral fellowship at Harvard University at the School of Applied Sciences and Engineering (SEAS). His main research was on nano-plasmonics and nanophotonics structures and optical metamaterials at visible wavelength. He is a member of the Optical Society of America and a technical reviewer for several Journals.

    Pierre Wahl

    Pierre Wahl co-founded Luceda Photonics in 2014 where he’s in charge of sales, support and training operations. At Luceda, he trains and supports R&D teams of major corporations, research institutes, foundries and universities in China, North America and Europe. He completed his Ph.D. in opto-electronics at the Free University of Brussels and Stanford University on ultra-low energy optical interconnects in 2014. Wahl obtained his Master’s degree in photonics from the University of Gent and the Free University of Brussels in 2010. He has co-authored multiple journal publications and delivered various talks around specialized design, simulation and optimization techniques used in integrated photonics.

    Frank Scharf

    Frank Scharf is a SIMULIA Technical Sales Director with a focus on optical applications. Scharf obtained his Ph.D. in Electrical Engineering from Ruhr-Universitaet Bochum, Germany. During his graduate studies, he focused on modeling and simulating the plasma sheath in high intensity discharge lamps. Frank joined CST in 2008 and transferred to CST of America in 2009.

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