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Time & frequency metrology

News and Updates

Events

2020 Time and Frequency Seminar

Tue, Sep 15 - Thu, Sep 17 2020
NIST is closely monitoring guidance from Federal, State, and local health authorities on the outbreak of COVID-19. To

Industry Impacts

Navigation through Timekeeping

Accurate navigation requires precision timing synchronization to about 1 billionth of a second per day. New applications require timing mechanisms that can

Projects and Programs

Noise Metrology

We provide state-of-the-art phase and amplitude noise measurements for signals from RF to optical frequencies.

FPGA Design

Our group is developing FPGA based digital phase noise measurement and control systems.

Publications

Kerr Microresonator Soliton Frequency Combs at Cryogenic Temperatures

Author(s)
Gregory T. Moille, Xiyuan Lu, Ashutosh S. Rao, Qing Li, Daron A. Westly, Leonardo Ranzani, Scott B. Papp, Mohammad Soltani, Kartik A. Srinivasan
We present measurements of silicon nitride nonlinear microresonators and frequency comb generation at cryogenic temperatures as low as 7 K. A resulting two

Time Synchronization over a Free-Space Optical Communication Channel

Author(s)
Isaac H. Khader, Laura C. Sinclair, William C. Swann, Hugo Bergeron, Nathan R. Newbury, Jean-Daniel Deschenes
Free space optical (FSO) communication channels are typically used to transmit high-speed data between sites over the air. Here we repurpose an FSO digital

Awards

2015 Allen V. Astin Award

The Allen V. Astin Measurement Science Award, first presented in 1984, is granted for outstanding achievement in the advancement of...

2013 W. G. Cady Award - David Howe

The W. G. Cady Award is to recognize outstanding contributions related to the fields of piezoelectric or other classical frequency control...