4.8 Article

Dissipative soliton generation and real-time dynamics in microresonator-filtered fiber lasers

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LIGHT-SCIENCE & APPLICATIONS
卷 11, 期 1, 页码 -

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SPRINGERNATURE
DOI: 10.1038/s41377-022-00998-z

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资金

  1. National Science Foundation [OMA 2016244, ECCS 2048202]
  2. Office of Naval Research [N00014-22-1-2224]
  3. National Key R&D Program of China [2019YFA0705000, 2017YFA0303700]
  4. Key R&D Program of Guangdong Province [2018B030329001]
  5. Guangdong Major Project of Basic and Applied Basic Research [2020B0301030009]
  6. Leading-edge technology Program of Jiangsu Natural Science Foundation [BK20192001]
  7. National Natural Science Foundation of China [51890861, 11690031, 11621091, 11627810, 11674169, 91950206]
  8. Zhangjiang Laboratory [ZJSP21A001]
  9. University of Colorado Boulder

向作者/读者索取更多资源

Optical frequency combs in microresonators have great potential for various applications. However, conventional soliton microcombs have some limitations. By nesting a microresonator into a fiber cavity, these limitations can be overcome, resulting in high-efficiency and self-starting microcombs.
Optical frequency combs in microresonators (microcombs) have a wide range of applications in science and technology, due to its compact size and access to considerably larger comb spacing. Despite recent successes, the problems of self-starting, high mode efficiency as well as high output power have not been fully addressed for conventional soliton microcombs. Recent demonstration of laser cavity soliton microcombs by nesting a microresonator into a fiber cavity, shows great potential to solve the problems. Here we study the dissipative soliton generation and interaction dynamics in a microresonator-filtered fiber laser in both theory and experiment. We bring theoretical insight into the mode-locking principle, discuss the parameters effect on soliton properties, and provide experimental guidelines for broadband soliton generation. We predict chirped bright dissipative soliton with flat-top spectral envelope in microresonators with normal dispersion, which is fundamentally forbidden for the externally driven case. Furthermore, we experimentally achieve soliton microcombs with large bandwidth of similar to 10 nm and high mode efficiency of 90.7%. Finally, by taking advantage of an ultrahigh-speed time magnifier, we study the real-time soliton formation and interaction dynamics and experimentally observe soliton Newton's cradle. Our study will benefit the design of the novel, high-efficiency and self-starting microcombs for real-world applications.

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