2020
DOI: 10.1038/s42005-019-0274-x
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Coherent satellites in multispectral regenerative frequency microcombs

Abstract: Multi-spectral frequency combs provide frontier architectures for laser standoff spectroscopy, optical clockwork, and high-capacity optical communications. Frequency microcombs, aided by their high-quality resonances and inherent third-order nonlinear susceptibility, have demonstrated remarkable impact in frequency metrology and synthesis. However, microcombs are often with limited spectral bandwidth bounded by the intrinsic second-order chromatic dispersion and the consequently low intensities at the spectral… Show more

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Cited by 12 publications
(7 citation statements)
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“…14 and is thus used hereafter as the reference case. The primary comb lines 12,13,15 that are generated in the early stage of the comb generation process provide information that is useful for evaluating the bandwidth of parametric process; [24][25][26] it is also plotted for point 3 at the bottom of Fig. 1(d).…”
Section: Comb Bandwidth Of Silicon Step-index Waveguidementioning
confidence: 99%
See 2 more Smart Citations
“…14 and is thus used hereafter as the reference case. The primary comb lines 12,13,15 that are generated in the early stage of the comb generation process provide information that is useful for evaluating the bandwidth of parametric process; [24][25][26] it is also plotted for point 3 at the bottom of Fig. 1(d).…”
Section: Comb Bandwidth Of Silicon Step-index Waveguidementioning
confidence: 99%
“…It is thus very interesting to reduce and engineer the dispersion coefficient D globally while keeping the other parameters fixed (γ, P in , etc.). [22][23][24][25][26] This matter is discussed in the next section of the article.…”
Section: Comb Bandwidth Of Silicon Step-index Waveguidementioning
confidence: 99%
See 1 more Smart Citation
“…Broadband optical frequency combs are required for precise optical frequency metrology and spectroscopy. Soliton microcombs have been demonstrated with spectral bandwidths reaching more than one octave [14][15][16][17][18][19] , and octave-spanning soliton microcombs with THz mode spacing directly realized, using Si 3 N 4 resonators by carefully engineering their dispersion properties 14,15 . Spectra of soliton microcombs with GHz mode spacing can be externally broadened to cover an octave, using highly nonlinear fibers 16 or nonlinear waveguides 18 .…”
mentioning
confidence: 99%
“…So far, frequency microcombs have been applied widely in laser-based light detection and ranging (LiDAR) [20][21][22] , high-speed optical communication networks 8,9,23 , on-chip spectroscopy 24,25 , and quantum sources [26][27][28] . To push the practicality of these applications, considerable effort has been made recently, such as turnkey soliton generation 29 , broadband spectral coverage [30][31][32] , high efficiency energy conversion [33][34][35] . Beyond the significant progresses in soliton generation, the ability to dynamically observe and control the soliton properties 36 also lies at the heart of various highperformance applications.…”
mentioning
confidence: 99%