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Generation of Ultrastable microwaves via optical frequency division

Published

Author(s)

Tara M. Fortier, Matthew S. Kirchner, Jennifer A. Taylor, James C. Bergquist, Yanyi Jiang, Andrew D. Ludlow, Christopher W. Oates, Till P. Rosenband, Scott A. Diddams, Franklyn J. Quinlan, Nathan D. Lemke

Abstract

A frequency-stabilized femtosecond laser optical frequency comb serves as a source of microwave signals having very low close-to-carrier phase noise. Comparison of two independent systems shows combined absolute phase noise of -100 dBc/Hz at an offset of 1 Hz from the 10 GHz carrier. The corresponding timing jitter is 2 fs, integrated from 1 Hz to 1 MHz.
Citation
Nature Photonics
Volume
5

Keywords

frequency comb, phase noise, microwave synthesis
Created June 26, 2011, Updated February 19, 2017