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Microresonator soliton dual-comb imaging

Bao, Chengying and Suh, Myoung-Gyun and Vahala, Kerry (2019) Microresonator soliton dual-comb imaging. Optica, 6 (9). pp. 1110-1116. ISSN 2334-2536. doi:10.1364/OPTICA.6.001110.

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Fast-responding detector arrays are commonly used for imaging rapidly changing scenes. Besides array detectors, a single-pixel detector combined with a broadband optical spectrum can also be used for rapid imaging by mapping the spectrum into a spatial coordinate grid and then rapidly measuring the spectrum. Here, optical frequency combs generated from high-Q silica microresonators are used to implement this method. The microcomb is dispersed in two spatial dimensions to measure a test target. The target-encoded spectrum is then measured by multi-heterodyne beating with another microcomb having a slightly different repetition rate, enabling an imaging frame rate up to 200 kHz and fill rates as high as 48 megapixels/s. The system is used to monitor the flow of microparticles in a fluid cell. Microcombs in combination with a monolithic waveguide grating array imager could greatly magnify these results by combining the spatial parallelism of detector arrays with spectral parallelism of optics.

Item Type:Article
Related URLs:
URLURL TypeDescription Paper
Suh, Myoung-Gyun0000-0002-9527-0585
Vahala, Kerry0000-0003-1783-1380
Additional Information:© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement. Received 8 April 2019; revised 5 July 2019; accepted 24 July 2019 (Doc. ID 364448); published 27 August 2019. The authors thank Taeyoon Jeon and Chengmingyue Li for helpful discussions on the flow-cell experiment. C. B. gratefully acknowledges support from a Postdoctoral Fellowship from the Resnick Institute at Caltech. Funding: Air Force Office of Scientific Research (FA9550-18-1-0353); Resnick Sustainability Institute for Science, Energy and Sustainability, California Institute of Technology.
Group:Kavli Nanoscience Institute, Resnick Sustainability Institute
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)FA9550-18-1-0353
Resnick Sustainability InstituteUNSPECIFIED
Issue or Number:9
Record Number:CaltechAUTHORS:20181129-145913477
Persistent URL:
Official Citation:Chengying Bao, Myoung-Gyun Suh, and Kerry Vahala, "Microresonator soliton dual-comb imaging," Optica 6, 1110-1116 (2019)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:91339
Deposited By: Tony Diaz
Deposited On:29 Nov 2018 23:37
Last Modified:16 Nov 2021 03:40

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