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Architecture for the photonic integration of an optical atomic clock

Newman, Zachary L. and Maurice, Vincent and Drake, Tara and Stone, Jordan R. and Briles, Travis C. and Spencer, Daryl T. and Fredrick, Connor and Li, Qing and Westly, Daron and Ilic, B. R. and Shen, Boqiang and Suh, Myoung-Gyun and Yang, Ki Youl and Johnson, Cort and Johnson, David M. S. and Hollberg, Leo and Vahala, Kerry J. and Srinivasan, Kartik and Diddams, Scott A. and Kitching, John and Papp, Scott B. and Hummon, Matthew T. (2019) Architecture for the photonic integration of an optical atomic clock. Optica, 6 (5). pp. 680-685. ISSN 2334-2536. doi:10.1364/OPTICA.6.000680.

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Laboratory optical atomic clocks achieve remarkable accuracy (now counted to 18 digits or more), opening possibilities to explore fundamental physics and enable new measurements. However, their size and use of bulk components prevent them from being more widely adopted in applications that require precision timing. By leveraging silicon-chip photonics for integration and to reduce component size and complexity, we demonstrate a compact optical-clock architecture. Here a semiconductor laser is stabilized to an optical transition in a microfabricated rubidium vapor cell, and a pair of interlocked Kerr-microresonator frequency combs provide fully coherent optical division of the clock laser to generate an electronic 22 GHz clock signal with a fractional frequency instability of one part in 10^(13). These results demonstrate key concepts of how to use silicon-chip devices in future portable and ultraprecise optical clocks.

Item Type:Article
Related URLs:
URLURL TypeDescription Material Paper
Fredrick, Connor0000-0002-0560-1433
Shen, Boqiang0000-0003-0697-508X
Suh, Myoung-Gyun0000-0002-9527-0585
Yang, Ki Youl0000-0002-0587-3201
Vahala, Kerry J.0000-0003-1783-1380
Diddams, Scott A.0000-0002-2144-0764
Alternate Title:Photonic integration of an optical atomic clock
Additional Information:© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. Received 22 February 2019; revised 17 April 2019; accepted 18 April 2019 (Doc. ID 360787); published 20 May 2019. Funding: Defense Advanced Research Projects Agency (DARPA); Atomic Clocks with Enhanced Stability (ACES); Direct On-Chip Digital Optical Synthesis (DODOS); U.S. Department of Defense (DoD). The authors would like to thank J. Burke, N. Lemke, L. Stern, E. Donley, and T. Heavner for helpful discussions, D. Hickstein and J. McGilligan for comments on the manuscript, and S. Schima, A. Dellis, and D. Bopp for their help in the cell fabrication. The views, opinions and/or findings expressed are those of the authors and should not be interpreted as representing the official views or policies of the Department of Defense or the U.S. Government. Any mention of commercial products within NIST web pages is for information only; it does not imply recommendation or endorsement by NIST.
Funding AgencyGrant Number
Defense Advanced Research Projects Agency (DARPA)UNSPECIFIED
Atomic Clocks with Enhanced Stability (ACES)UNSPECIFIED
Direct On-Chip Digital Optical Synthesis (DODOS)UNSPECIFIED
Department of DefenseUNSPECIFIED
Issue or Number:5
Record Number:CaltechAUTHORS:20181129-153803175
Persistent URL:
Official Citation:Z. Newman, V. Maurice, T. Drake, J. Stone, T. Briles, D. Spencer, C. Fredrick, Q. Li, D. Westly, B. Ilic, B. Shen, M. Suh, K. Yang, C. Johnson, D. Johnson, L. Hollberg, K. Vahala, K. Srinivasan, S. Diddams, J. Kitching, S. Papp, and M. Hummon, "Architecture for the photonic integration of an optical atomic clock," Optica 6, 680-685 (2019); DOI: 10.1364/OPTICA.6.000680
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91342
Deposited By: George Porter
Deposited On:30 Nov 2018 00:13
Last Modified:16 Nov 2021 03:40

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