Past events

Silicon Photonics: An afternoon of invited lectures from KAIST

15 September 2017, B53 4025 Highfield Campus, University of Southampton

Join us to welcome visitors from Korea Advanced Institute of Science and Technology (KAIST)

Agenda and abstracts

15:00-15:50 - Silicon-based Optoelectronic Devices for Communication and Sensing Applications
Assoc. Prof Kyoungsik Yu, School of Electrical Engineering, KAIST, Korea

Innovations in materials, fabrication, optical designs, and heterogeneous integration techniques offer exciting opportunities for silicon-based photonic/optoelectronic technologies to become a major convergence platform for a number of applications in communication and sensing. I will review our recent research activities in silicon-based integrated photonic devices, including on-chip light sources and high-speed photodetectors based on optofluidic integration of III-V semiconductor materials for communication applications as well as integrated optical beam forming devices for sensing applications. Our work is partially supported by the Silicon Photonics for Future Systems programme at the University of Southampton, UK.

15:50-16:10 - Refreshment break

16:10-17:00 - Ultra-High-Q Optical Resonators and Low Loss Waveguides on a Chip: Towards Miniaturisation of Optical Systems on a Silicon Chip
Asst. Prof Hansuek Lee, Graduate School of Nanoscience and Technology, KAIST, Korea

High Q optical resonators have played an important role over a wide range of research fields including nonlinear optics, cavity optomechanics, quantum information and optical telecommunications. Recently, we demonstrated silica disk resonators of around 900 million Q on a silicon chip, expanding the range of integration opportunities and possible applications. As an initial applications of the resonators, we demonstrated narrow line width lasers, frequency stabilization, micro-comb, and stable microwave synthesis. The developed microfabrication technique was also applied to implement on-chip low loss waveguides, resulting in successful demonstration of 27 m length waveguide with 0.08 dB/m propagation loss, close to that of optical fiber when it had been considered a viable technology. In this talk, these previous works and future research directions on ultra-high-Q resonators / low loss waveguide will be presented and discussed including the current efforts to miniaturize simple optical systems monolithically on a silicon chip based on ultra-hiqh-Q resonators and low loss waveguides.

17:00-18:00 - Reception (B53 Level 3 Common Room)

This event is supported by the ORC Seminar Series and the Silicon Photonics for Future Systems Programme Grant.