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Patrick Berthoud details cesium clock advances at IEEE Long Island MTTS/APS

Session will highlight innovations driving the future of precision timing standards and their role in securing GNSS-dependent infrastructure

  • Speakers: Patrick Berthoud, senior manager of time and frequency R&D at Oscilloquartz, Adtran
  • Topics: New generation of high-performance cesium microwave clocks and applications to PNT critical infrastructures
  • When: Thursday, April 17, 2 p.m. ET
  • Where: IEEE Long Island MTTS/APS Microwave/RF/Wireless Symposium & Exhibits, Radisson Hotel Hauppauge, Long Island, New York, USA https://www.ieee.li/microwave/

Since 1967, cesium beam clocks have served as the primary reference frequency standard underpinning critical technologies in navigation, communication, space exploration and more. Based on the 9.192GHz transition that defines the SI second, advances in optical pumping and laser cooling now significantly enhance the technology’s precision and broaden its application potential.

In this session, Patrick Berthoud will explore the evolution of cesium beam clock solutions, detailing how magnetic deflection, optical pumping and laser cooling enhance accuracy. He will then illustrate the critical role these clocks play within positioning navigation and timing (PNT) systems, emphasizing their importance as ground-based backups for GNSS signals.