Optical Frequency Synthesis and Comparison with Uncertainty at the 10 -19 Level
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- 19 March 2004
- journal article
- other
- Published by American Association for the Advancement of Science (AAAS) in Science
- Vol. 303 (5665), 1843-1845
- https://doi.org/10.1126/science.1095092
Abstract
A femtosecond laser–based optical frequency synthesizer is referenced to an optical standard, and we use it to demonstrate the generation and control of the frequency of electromagnetic fields over 100 terahertz of bandwidth with fractional uncertainties approaching 1 part in 10 19 . The reproducibility of this performance is verified by comparison of different types of femtosecond laser–based frequency synthesizers from three laboratories.Keywords
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