Why don’t you do an internship at Si Photonics group in IMEC, one of the world leading pioneers in Si Photonics? If you are interested in the topics below, let me know :), younghyun.kim@imec.be.

Analysis and modeling on propagation loss of III-V/Si waveguide

III-V materials had been traditionally considered one of the most promising materials for semiconductor photonic devices, and it has been introduced in Si photonics to breakthrough the limited device performances due to Si’s poor optical properties. We have proposed and demonstrated a monolithic III-V/Si phase modulator. This work aims to understand the behaviour of propagation loss of III-V/Si waveguide, which is one of the most important performances for low optical link budget.
Ref.: Y. Kim et. Al., “Proposal and Simulation of a Low Loss, Highly Efficient Monolithic III-V/Si Optical Phase Shifter”, IEEE GFP (2019)

Simulation and design for III-V/Si SIS*-type optical modulator using nano-ridge engineering

Nano-ridge engineering is one of the most promising methods to achieve a high crystal quality of III-V on a Si platform. Since the high crystal quality is also important for optical phase modulators to reduce loss and improve modulation efficiency, we have proposed a III-V/Si SIS-type optical modulator using nano-ridge engineering. This work aims to expect performance enhancement and optimize device performance using TCAD simulations.
*SIS : Semiconductor/Insulator/Semiconductor
Ref.: B. Kunert et. al. “ III/V nano ridge structures for optical applications on patterned 300 mm silicon substrate”, APL (2016)

Si VOA* modeling for PDK development

Si VOA is one of the essential building blocks in a Si photonics platform in order to control optical power level in a chip. This work aims to analyze device performance by means of experiment and TCAD simulation, and provide the compact model of Si VOA for PDK development.
*Variable optical attenuator
Ref.: Y. Kim et.al., “Record-low Injection-current Strained SiGe variable optical attenuator with optimized lateral PIN junction” Opt. Exp. (2015)