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Direct soliton generation in microresonators.

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TLDR
The random fluctuations of the cavity resonance occurring under TO chaos are found to trigger delayed spontaneous soliton generation after the laser scan ends, which could enable soliton excitation with slow laser tuning speed.
Abstract
We investigate, numerically and experimentally, the effect of thermo-optical (TO) chaos on soliton generation dynamics in microresonators. Numerical simulations that include the thermal dynamics show that the generated solitons can either survive or annihilate when the pump laser is scanned from blue to red and then stop at a fixed wavelength; the outcome is stochastic and is strongly related to the number of solitons generated. The random fluctuations of the cavity resonance occurring under TO chaos are also found to trigger delayed spontaneous soliton generation after the laser scan ends, which could enable soliton excitation with slow laser tuning speed. Stochastic soliton annihilation/survival, as well as delayed spontaneous soliton generation, is observed experimentally in a silicon-nitride microresonator.

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Citations
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Ultra-dense optical data transmission over standard fibre with a single chip source.

TL;DR: By using a powerful class of micro-comb called soliton crystals, this work achieves ultra-high data transmission over 75 km of standard optical fibre using a single integrated chip source and demonstrates the capability of optical micro-combs to perform in demanding and practical optical communications networks.
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Spatial mode-interaction induced single soliton generation in microresonators

TL;DR: In this paper, a passive mechanism for single temporal soliton formation arising from spatial mode-interaction in micro-resonators is introduced, experimentally and numerically, for single soliton generation.
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Optical data transmission at 44Tb/s and 10 bits/s/Hz over the C-band with standard fibre and a single micro-comb source

TL;DR: In this article, the authors demonstrate a line rate of 44.2 Terabits per second using the telecommunications C band at 1550nm with a spectral efficiency, a critically important performance metric, of 10.4 bits/s/Hz.
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Soliton microcomb generation at 2 μm in z-cut lithium niobate microring resonators.

TL;DR: In this article, the authors demonstrate mode-locked soliton microcombs generated around 2μm in a high-Q z-cut LN microring resonator and find that the intracavity photorefractive effect is still dominant over the thermal effect in the 2-μm region, which facilitates direct accessing soliton states in the red-detuned regime.
Journal ArticleDOI

Advances in soliton microcomb generation

TL;DR: In this paper, a review summarizes recent achievements in soliton microcomb (SMC) generation, including the basic theory and physical model, as well as experimental techniques for single-soliton generation and various extraordinary soliton states.
References
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Journal ArticleDOI

Optical frequency comb generation from a monolithic microresonator

TL;DR: This work reports a substantially different approach to comb generation, in which equally spaced frequency markers are produced by the interaction between a continuous-wave pump laser of a known frequency with the modes of a monolithic ultra-high-Q microresonator via the Kerr nonlinearity.
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Microresonator-Based Optical Frequency Combs

TL;DR: A new optical frequency comb generation principle has emerged that uses parametric frequency conversion in high resonance quality factor (Q) microresonators, permitting an increased number of comb applications, such as in astronomy, microwave photonics, or telecommunications.
Journal ArticleDOI

Temporal solitons in optical microresonators

TL;DR: In this article, temporal dissipative solitons are observed in a nonlinear, high-finesse, optical microresonator driven by a continuous-wave laser, enabling ultrashort pulses to be generated in spectral regimes lacking broadband laser gain media and saturable absorbers.
Journal ArticleDOI

Photonic chip–based optical frequency comb using soliton Cherenkov radiation

TL;DR: Using a continuous wave–pumped, dispersion-engineered, integrated silicon nitride microresonator, the device offers the opportunity to develop compact on-chip frequency combs for frequency metrology or spectroscopy.
Journal ArticleDOI

Microresonator soliton dual-comb spectroscopy

TL;DR: A miniature soliton-based dual-comb system that can potentially transfer the approach to a chip platform is demonstrated and the potential for integrated spectroscopy with high signal-to-noise ratios and fast acquisition rates is shown.
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