Dark-Bright Soliton Bound States in a Microresonator

Zhang, Shuangyou; Bi, Toby; Ghalanos, George N.; Moroney, Niall; Bino, Leonardo Del; Del’Haye, Pascal

doi:10.1103/physrevlett.128.033901

Cited by 34 publications

(16 citation statements)

References 56 publications

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“…All our predictions have been obtained for realistic parameters with possible experimental verification in a variety of ring resonator setups, from micro-ring to fibre loops. Frequency comb generation has also been demonstrated using two lasers for bichromatic pumping of a micro-ring resonator for the generation of dark bright solitons [33]. A modification to this setup to incorporate bidirectional pumping should allow for the generation of counterpropagating SF states.…”

Section: Discussionmentioning

confidence: 99%

Counterpropagating light in ring resonators: Switching fronts, plateaus, and oscillations

et al. 2022

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We characterise the formation of robust stationary states formed by light plateaus separated by two local switching fronts in only one of two counterpropagating fields in ring resonators with normal dispersion. Such states are due to global cross coupling and allow for frequency combs to switch from one field to the other by simply tuning the input laser frequency. Exact expressions for the distance between fronts and for plateau powers are provided in excellent agreement with simulations. These demonstrate an unusual high degree of control over pulse and plateau duration in one of the fields upon changes of one of the input laser frequencies. We identify a wide parameter region in which light plateaus are self-starting and are the only stable solution. For certain values of the detunings we find multi-stable states of plateaus with switching fronts, slowly oscillating homogeneous states and non-oscillating homogeneous states of the counterpropagating fields. Robustness and multi-stability of these unusual single-field front solutions are provided in parameter ranges that are experimentally achievable in a wide variety of ring resonators.

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Section: Discussionmentioning

confidence: 99%

Counterpropagating light in ring resonators: Switching fronts, plateaus, and oscillations

et al. 2022

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“…Recent research revealed bound states of dark-bright solitons in a resonator through seeding two modes with opposite dispersion via two colors of light (lower panel in the right of Fig. 3) [8]. These mutually trapped dark-bright pulses lead to a light state with constant output power in the time domain but spectrally resembling frequency combs.…”

Section: Beyond the Lugiato-lefever Equationmentioning

confidence: 97%

Kerr frequency combs: a million ways to fit light pulses into tiny rings

2022

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Frequency combs can be generated in millimeter-sized optical resonators thanks to their ability to store extremely high light intensities and the nonlinearity of their materials. New frequencies are generated through a cascaded parametric amplification process which can result in various optical waveforms, from ultrastable pulse patterns to optical chaos. These Kerr frequency combs have been studied extensively, with a wealth of fascinating nonlinear dynamics reported, and myriads of applications being developed, ranging from precision spectroscopy and Lidars to telecom channel generators.

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“…Soliton optical frequency combs generated in microcavities with whispering gallery modes (WGMs) have been attracting great attention in recent years [ 1 , 2 , 3 , 4 , 5 , 6 , 7 ]. They have a huge number of applications, e.g., in spectroscopy, LIDAR, massively parallel coherent telecommunications, optical frequency synthesizers, low-noise microwave generation, and so on [ 1 ].…”

Section: Introductionmentioning

confidence: 99%

“…The first demonstration of bright dissipative Kerr solitons in microcavities was reported in [ 2 ]. After that, diverse soliton regimes were investigated, e.g., dark solitons [ 3 ], platicons [ 4 ], bright-dark soliton pairs [ 5 ], Raman solitons [ 7 ], and many others. Cavity Raman (Stokes) solitons are generated at the central frequency shifted from the pump frequency by the value close to the frequency of maximum Raman gain.…”

Section: Introductionmentioning

confidence: 99%

Thermo-Optical Control of Raman Solitons in a Functionalized Silica Microsphere

2022

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The investigation of optical microcavity solitons is in demand both for applications and basic science. Despite the tremendous progress in the study of microresonator solitons, there is still no complete understanding of all features of their nonlinear dynamics in various regimes. Controlling soliton properties is also of great interest. We proposed and investigated experimentally and theoretically a simple and easily reproducible way to generate Raman solitons with controllable spectral width in an anomalous dispersion region in a functionalized silica microsphere with whispering gallery modes (WGMs) driven in a normal dispersion regime. To functionalize the microsphere, coating (TiO2 + graphite powder) was applied at the pole. The coating is used for effective thermalization of the radiation of an auxiliary laser diode launched through the fiber stem holding the microsphere to control detuning of the pump frequency from exact resonance due to the thermo-optical shift of the WGM frequencies. We demonstrated that the thermo-optical control by changing the power of an auxiliary diode makes it possible to switch on/off the generation of Raman solitons and control their spectral width, as well as to switch Raman generation to multimode or single-mode. We also performed a detailed theoretical analysis based on the Raman-modified Lugiato–Lefever equation and explained peculiarities of intracavity nonlinear dynamics of Raman solitons. All experimental and numerically simulated results are in excellent agreement.

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Dark-Bright Soliton Bound States in a Microresonator

Cited by 34 publications

References 56 publications

Counterpropagating light in ring resonators: Switching fronts, plateaus, and oscillations

Counterpropagating light in ring resonators: Switching fronts, plateaus, and oscillations

Kerr frequency combs: a million ways to fit light pulses into tiny rings

Thermo-Optical Control of Raman Solitons in a Functionalized Silica Microsphere

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