Lunch Chat: Miniature atomic clocks at CSEM

Tue, 05.12.2023, online


We are pleased to announce and invite you to one of our weekly online zoom events.

Miniature atomic clocks at CSEM

Miniature atomic clocks currently achieve the high level of frequency stability, required for today communication systems and localization devices. Over the past decade, CSEM has been at the forefront of advancing chip-scale atomic clocks, encompassing critical elements such as a MEMS atomic vapor cell, a physics package, and an ASIC. As a results, CSEM is ccurrently engaged in the pivotal phase of transferring this knowledge to the industry.
This lunch-chat session will provide insights into the latest achievements in the development of near-industrial RF-based chip-scale atomic clock systems, showcasing the progress achieved by CSEM in enhancing frequency stability and lowering the power consumption of these devices.
Furthermore, the presentation will delve into CSEM's recent research, focussing on pushing the boundaries of miniature atomic clock technology. Specifically, attention will be directed towards pioneering efforts in the domain of optical transitions, laying the foundation for the next generation of chip-scale atomic clocks. Preliminary results and developments in this innovative avenue will be discussed, offering a glimpse into the promising future of atomic timekeeping.


Dr. Sylvain Karlen, Group Leader Quantum Tech
Following the completion of his Master's degree in Applied Physics at EPFL with a Master Thesis at the University of Geneva on quantum communication, Sylvain Karlen joined CSEM in 2014 as a Ph.D. candidate. Dedicating his research to the field of miniature atomic clocks under the guidance of the “Laboratoire Temps-Fréquence” at the University of Neuchatel, Sylvain successfully defended his dissertation titled “Fabrication and characterization of MEMS alkali vapor cells used in chip-scale atomic clocks and other atomic devices” in 2017.
During his doctoral journey, Sylvain seized the valuable opportunity to broaden his perspective by visiting the European Space Agency Research Center (ESTEC) in the Netherlands, enriching his understanding of the European Space ecosystem. Post-Ph.D., Sylvain briefly broadened his expertise in laser and optics at the National Institute of Standards and Technology (NIST) in Boulder, Colorado, working on pulsed lasers before returning to CSEM.
Back at CSEM, Sylvain initially served as an R&D engineer and later assumed the role of a project manager, consolidating his proficiency in photonics, atomic clocks, and quantum sensors. As of January 2023, Sylvain has ascended to the leadership position of the "Quantum Tech” Group at CSEM. His group’s research focuses on atomic clocks, quantum sensors, time and frequency, and prospective quantum technologies.


Dr. Christian Bosshard, Managing Director Swissphotonics
Dr. Christian Bosshard received his degree in Physics (1986) and his doctorate (1991, Silver medal award) from ETH. From 2001-2021 he was working at CSEM, first as Section Head and then as Vice President and Head Photonics. Since 2013 he is Managing Director of Swissphotonics. Christian is a Fellow of Optica, Board Member of EPIC, and Member of the Board of the University of Basel.

Tuesday, 5 December 2023

12:00 - 12:45


free of charge

Registration only necessary once
This event series requires registration (see link above). We will send you the access information (Zoom-link and ID) by email after the registration. As the Zoom link remains the same every week, you do not need to register again for the following meetings.

Dr. Sylvain Karlen
Group Leader Quantum Tech

Contact Swissphotonics
Dr. Christian Bosshard
Managing Director Swissphotonics
+41 79 405 1826

25 June 2023, Christian Bosshard
Swissphotonics, Verein Schweizer Laser und Photonik Netz VSLP | Sihleggstrasse 23 | CH-8832 Wollerau | E-Mail | |