• Advanced Photonics
  • Vol. 2, Issue 3, 034001 (2020)
Weiqiang Wang1、†, Leiran Wang1、2, and Wenfu Zhang1、2、*
Author Affiliations
  • 1Chinese Academy of Sciences, Xi’an Institute of Optics and Precision Mechanics, State Key Laboratory of Transient Optics and Photonics, Xi’an, China
  • 2University of Chinese Academy of Sciences, Beijing, China
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    Abstract

    Optical frequency combs, a revolutionary light source characterized by discrete and equally spaced frequencies, are usually regarded as a cornerstone for advanced frequency metrology, precision spectroscopy, high-speed communication, distance ranging, molecule detection, and many others. Due to the rapid development of micro/nanofabrication technology, breakthroughs in the quality factor of microresonators enable ultrahigh energy buildup inside cavities, which gives birth to microcavity-based frequency combs. In particular, the full coherent spectrum of the soliton microcomb (SMC) provides a route to low-noise ultrashort pulses with a repetition rate over two orders of magnitude higher than that of traditional mode-locking approaches. This enables lower power consumption and cost for a wide range of applications. This review summarizes recent achievements in SMCs, including the basic theory and physical model, as well as experimental techniques for single-soliton generation and various extraordinary soliton states (soliton crystals, Stokes solitons, breathers, molecules, cavity solitons, and dark solitons), with a perspective on their potential applications and remaining challenges.
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    Weiqiang Wang, Leiran Wang, Wenfu Zhang. Advances in soliton microcomb generation[J]. Advanced Photonics, 2020, 2(3): 034001
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    Category: Reviews
    Received: Jan. 28, 2020
    Accepted: Apr. 23, 2020
    Posted: Jun. 22, 2020
    Published Online: Jun. 22, 2020
    The Author Email: Wang Weiqiang (wwq@opt.ac.cn), Wang Leiran (lionking@opt.ac.cn), Zhang Wenfu (wfuzhang@opt.ac.cn)