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Optical frequency combs: Coherently uniting the electromagnetic spectrum

Diddams, Scott A. and Vahala, Kerry and Udem, Thomas (2020) Optical frequency combs: Coherently uniting the electromagnetic spectrum. Science, 369 (6501). Art. No. eaay3676. ISSN 0036-8075. https://resolver.caltech.edu/CaltechAUTHORS:20200720-085036762

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Abstract

Optical clocks, based on optical transitions of atoms, operate at much higher frequency than the microwave atomic clocks currently used as our timing standards. They have been shown to exhibit better stability and are poised to redefine the second. The development of stable, self-referenced optical frequency combs that span the microwave to optical wavelengths has been key to these efforts. Diddams et al. reviewed developments and refinements of these optical combs over the past 20 years and provide an overview of where they are finding application, from precision timing to high-resolution spectroscopy and imaging, ranging, and navigation.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1126/science.aay3676DOIArticle
https://science.sciencemag.org/content/369/6501/eaay3676PublisherArticle
ORCID:
AuthorORCID
Diddams, Scott A.0000-0002-2144-0764
Vahala, Kerry0000-0003-1783-1380
Additional Information:© 2020 American Association for the Advancement of Science. This is an article distributed under the terms of the Science Journals Default License. We are grateful to T. Hänsch and J. Hall for their input, vision, and leadership in this field, as well as to N. Newbury, C. Oates, and J. Ye for their comments on this manuscript. We also thank B. Baxley, T. Briles, J. Knight, S. Papp, P. Russell, R. Windeler, and the University of Bath for their contributions to the figures. Finally, we are indebted to the many colleagues with whom we have had the privilege to learn about the ever-expanding field of optical frequency combs. Funding: This material is based on work supported by the National Institute of Standards and Technology (NIST); the Defense Advanced Research Projects Agency (DARPA) under awards in the DODOS (HROO1 1-15-C-0055), APHi (FA9453-19-C-0029), SCOUT (W31P4Q-15-1-0011), and ACES programs; and the Air Force Office of Scientific Research (AFOSR) under awards FA9550-16-1-0016 and FA9550-18-1-0353. Competing interests: T.U. is an inventor on patents US6785303B1 and US20060268949 held by the Max-Planck-Gesellschaft zur Förderung der Wissenschaften that cover optical frequency combs.
Funders:
Funding AgencyGrant Number
National Institute of Standards and Technology (NIST)UNSPECIFIED
Defense Advanced Research Projects Agency (DARPA)HR0011-15-C-0055
Defense Advanced Research Projects Agency (DARPA)FA9453-19-C-0029
Defense Advanced Research Projects Agency (DARPA)W31P4Q-15-1-0011
Air Force Office of Scientific Research (AFOSR)FA9550-16-1-0016
Air Force Office of Scientific Research (AFOSR)FA9550-18-1-0353
Issue or Number:6501
Record Number:CaltechAUTHORS:20200720-085036762
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200720-085036762
Official Citation:Optical frequency combs: Coherently uniting the electromagnetic spectrum. Scott A. Diddams, Kerry Vahala, Thomas Udem. Science 17 Jul 2020; doi: 10.1126/science.aay3676
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:104442
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:20 Jul 2020 16:10
Last Modified:20 Jul 2020 16:10

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