Research Overview 
Ultralow-noise & ultra-stable 
optical frequency combs 
Frequency comb-based 
microwave/mm-wave photonics
 
Frequency comb-based 
on-chip photonic systems
 
Frequency comb-based ultrafast 
camera & dynamic imaging
 
Frequency comb-based 
industrial metrology
 
 


We are at the forefront of the development of ultralow-noise optical frequency comb sources and their innovative timing applications spanning from synchronizing ultrafast quantum science and radio astronomy facilities through chip-scale microwave photonic systems to ultrafast 3D dynamics imaging.

Not only have our recent research findings been published in high-impact journals such as Nature Photonics, Nature Communications, Science Advances, Light: Science & Applications, and Optica, but they have also been actively applied in high-tech industries such as Quantum Technology (on-chip frequency synthesizers for portable quantum time sensors and timing for quantum links), ICT & AI (on-chip photonic clock distribution and data converters), Defense (photonics-based radars), and Semiconductor Manufacturing (sensing and imaging for semiconductor device manufacturing processes). Thanks to the multidisciplinary nature of our research, we also enjoy a wide range of domestic and international collaboration opportunities with academia, national labs, and industries.


Advanced Experiments Conducted in the Laboratory



Our Timeline, Major Achievements & Future Research Direction



5-Minute Virtual Lab Tour
Come and visit our labs at KAIST to explore our fascinating research on ultralow-noise and compact optical frequency combs, as well as their exciting engineering and scientific applications!
(originally created by our students to be shown at the IEEE Photonics Society Summer Topical Meetings 2022)