Next-Generation Microcombs for Compact Optical Frequency Division Systems

Event Date:
2024-05-30T14:00:00
2024-05-30T15:00:00
Event Location:
MacLeod 3038 (https://maps.ubc.ca/?code=MCLD)
Speaker:
Kerry Vahala, Professor of Applied Physics, Jenkins Chair in Information Science and Technology
Related Upcoming Events:
Other Talks
Intended Audience:
Graduate
Local Contact:

Sudip Shekhar
Electrical and Computer Engineering
University of British Columbia
4017-2332 Main Mall, Kaiser Building
Vancouver, B.C., Canada, V6T-1Z4

Office: Room 4017 Kaiser Building
Work: 604-827-2218

http://www.ece.ubc.ca/~sudip

 

Event Information:

Dear colleagues,
We invite you to the next SSCS Vancouver Seminar on Thursday, May 30th, at 2 pm by Prof. Kerry Vahala from Caltech. Kerry is a world authority on frequency combs. Please remember to mark your calendar!

Abstract: 
Optical frequency division (OFD) enables transfer of stability from references such as atomic transitions and optical cavities to microwave and radio-frequency signals.  Enabled by self-referenced frequency combs, the most accurate clocks (optical clocks) and lowest phase-noise microwave signal sources are based upon this method. In recent years, a miniature chip-based comb (microcomb) is being studied for creation of compact OFD systems.  I will review the physical principles of microcomb operation along with recently demonstrated microcomb devices that mode lock by formation of femtosecond pulse pairs.  Finally, a high-performance microwave signal source is described wherein microcombs implement the method of 2-point OFD using a compact cavity reference.

Biography:

Kerry Vahala is Professor of Applied Physics at Caltech and holds the Jenkins Chair in Information Science and Technology. His research on chip-based high-Q optical resonators and related nonlinear optical devices has advanced miniature frequency and time systems, microwave sources, parametric oscillators, astrocombs and gyroscopes. Vahala also made early contributions to the subject of cavity optomechanics and demonstrations of chip-based devices to cavity QED phenomena. A member of the National Academy of Engineering and Fellow of the IEEE and Optica, he received the IEEE Sarnoff Medal for research on quantum-well laser dynamics, the Alexander von Humboldt award and MPQ Distinguished Scholar Award for work on ultra-high-Q optical microcavities, a NASA achievement award for application of microcombs to exoplanet detection, and the Optica Paul F. Forman Team Engineering Excellence Award for a 2-photon optical clock. Vahala is the Executive Officer of the Department of Applied Physics and Materials Science at Caltech.


 

Add to Calendar 2024-05-30T14:00:00 2024-05-30T15:00:00 Next-Generation Microcombs for Compact Optical Frequency Division Systems Event Information: Dear colleagues,We invite you to the next SSCS Vancouver Seminar on Thursday, May 30th, at 2 pm by Prof. Kerry Vahala from Caltech. Kerry is a world authority on frequency combs. Please remember to mark your calendar! Abstract: Optical frequency division (OFD) enables transfer of stability from references such as atomic transitions and optical cavities to microwave and radio-frequency signals.  Enabled by self-referenced frequency combs, the most accurate clocks (optical clocks) and lowest phase-noise microwave signal sources are based upon this method. In recent years, a miniature chip-based comb (microcomb) is being studied for creation of compact OFD systems.  I will review the physical principles of microcomb operation along with recently demonstrated microcomb devices that mode lock by formation of femtosecond pulse pairs.  Finally, a high-performance microwave signal source is described wherein microcombs implement the method of 2-point OFD using a compact cavity reference.Biography: Kerry Vahala is Professor of Applied Physics at Caltech and holds the Jenkins Chair in Information Science and Technology. His research on chip-based high-Q optical resonators and related nonlinear optical devices has advanced miniature frequency and time systems, microwave sources, parametric oscillators, astrocombs and gyroscopes. Vahala also made early contributions to the subject of cavity optomechanics and demonstrations of chip-based devices to cavity QED phenomena. A member of the National Academy of Engineering and Fellow of the IEEE and Optica, he received the IEEE Sarnoff Medal for research on quantum-well laser dynamics, the Alexander von Humboldt award and MPQ Distinguished Scholar Award for work on ultra-high-Q optical microcavities, a NASA achievement award for application of microcombs to exoplanet detection, and the Optica Paul F. Forman Team Engineering Excellence Award for a 2-photon optical clock. Vahala is the Executive Officer of the Department of Applied Physics and Materials Science at Caltech.   Event Location: MacLeod 3038 (https://maps.ubc.ca/?code=MCLD)