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Direct Kerr frequency comb atomic spectroscopy and stabilization

Stern, Liron and Stone, Jordan R. and Kang, Songbai and Cole, Daniel C. and Suh, Myoung-Gyun and Fredrick, Connor and Newman, Zachary and Vahala, Kerry and Kitching, John and Diddams, Scott A. and Papp, Scott B. (2020) Direct Kerr frequency comb atomic spectroscopy and stabilization. Science Advances, 6 (9). Art. No. eaax6230. ISSN 2375-2548. PMCID PMC7048413. doi:10.1126/sciadv.aax6230.

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Microresonator-based soliton frequency combs, microcombs, have recently emerged to offer low-noise, photonic-chip sources for applications, spanning from timekeeping to optical-frequency synthesis and ranging. Broad optical bandwidth, brightness, coherence, and frequency stability have made frequency combs important to directly probe atoms and molecules, especially in trace gas detection, multiphoton light-atom interactions, and spectroscopy in the extreme ultraviolet. Here, we explore direct microcomb atomic spectroscopy, using a cascaded, two-photon 1529-nm atomic transition in a rubidium micromachined cell. Fine and simultaneous repetition rate and carrier-envelope offset frequency control of the soliton enables direct sub-Doppler and hyperfine spectroscopy. Moreover, the entire set of microcomb modes are stabilized to this atomic transition, yielding absolute optical-frequency fluctuations at the kilohertz level over a few seconds and <1-MHz day-to-day accuracy. Our work demonstrates direct atomic spectroscopy with Kerr microcombs and provides an atomic-stabilized microcomb laser source, operating across the telecom band for sensing, dimensional metrology, and communication.

Item Type:Article
Related URLs:
URLURL TypeDescription CentralArticle Information
Stern, Liron0000-0002-4588-110X
Cole, Daniel C.0000-0002-6360-1319
Suh, Myoung-Gyun0000-0002-9527-0585
Fredrick, Connor0000-0002-0560-1433
Vahala, Kerry0000-0003-1783-1380
Kitching, John0000-0002-4540-1954
Diddams, Scott A.0000-0002-2144-0764
Papp, Scott B.0000-0001-8290-7076
Additional Information:© 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license, which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited. Received for publication April 8, 2019. Accepted for publication December 5, 2019. Published 28 February 2020. We thank S.-P. Yu and M. Hummon for comments on the manuscript. We acknowledge the Kavli Nanoscience Institute. This work is a contribution of the U.S. government and is not subject to copyright in the United States. We acknowledge funding from DARPA DODOS and ACES programs, NASA, AFOSR award number FA9550-16-1-0016, and NIST. Author contributions: L.S. conceived the concept and analyzed the data. L.S. and J.R.S. performed the experiments and wrote the paper. D.C.C. contributed to develop the phase modulation initialization technique. Z.N., M.-G.S., J.K., and K.V. contributed to fabrication of the devices. S.K. and J.K. provided the Rb-stabilized reference laser. C.F. and S.A.D. provided the frequency comb reference system. S.B.P. supervised the project, designed the experiments, and wrote the paper. Data and materials availability: All data needed to evaluate the conclusions in the paper are present in the paper and/or the Supplementary Materials. Additional data related to this paper may be requested from the authors. The authors declare that they have no competing interests.
Group:Kavli Nanoscience Institute
Funding AgencyGrant Number
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Air Force Office of Scientific Research (AFOSR)FA9550-16-1-0016
National Institute of Standards and Technology (NIST)UNSPECIFIED
Issue or Number:9
PubMed Central ID:PMC7048413
Record Number:CaltechAUTHORS:20200313-095458922
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Official Citation:Direct Kerr frequency comb atomic spectroscopy and stabilization BY LIRON STERN, JORDAN R. STONE, SONGBAI KANG, DANIEL C. COLE, MYOUNG-GYUN SUH, CONNOR FREDRICK, ZACHARY NEWMAN, KERRY VAHALA, JOHN KITCHING, SCOTT A. DIDDAMS, SCOTT B. PAPP Science Advances 28 Feb 2020: Vol. 6, no. 9, eaax6230 DOI: 10.1126/sciadv.aax6230
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:101903
Deposited By: George Porter
Deposited On:16 Mar 2020 14:49
Last Modified:16 Feb 2022 00:00

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