Invited Article: Emission of intense resonant radiation by dispersion-managed Kerr cavity solitons

Nielsen, Alexander U.; Garbin, Bruno; Coen, Stéphane; Murdoch, Stuart G.; Erkintalo, Miro

doi:10.1063/1.5060123

Cited by 41 publications

(20 citation statements)

References 56 publications

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“…Dispersive waves can also induce a spectral center shift in the Kerr soliton 18 , 23 . Dispersive waves can emerge as a result of higher-order dispersion 23 , 24 , supermodes 25 , or when solitons radiate into resonator modes that do not belong to the soliton-forming mode family. And the spectral shift they induce can offset the Raman self shift.…”

Section: Introductionmentioning

confidence: 99%

Dispersive-wave induced noise limits in miniature soliton microwave sources

Yang

et al. 2021

Nat Commun

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Compact, low-noise microwave sources are required throughout a wide range of application areas including frequency metrology, wireless-communications and airborne radar systems. And the photonic generation of microwaves using soliton microcombs offers a path towards integrated, low noise microwave signal sources. In these devices, a so called quiet-point of operation has been shown to reduce microwave frequency noise. Such operation decouples pump frequency noise from the soliton’s motion by balancing the Raman self-frequency shift with dispersive-wave recoil. Here, we explore the limit of this noise suppression approach and reveal a fundamental noise mechanism associated with fluctuations of the dispersive wave frequency. At the same time, pump noise reduction by as much as 36 dB is demonstrated. This fundamental noise mechanism is expected to impact microwave noise (and pulse timing jitter) whenever solitons radiate into dispersive waves belonging to different spatial mode families.

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Section: Introductionmentioning

confidence: 99%

Dispersive-wave induced noise limits in miniature soliton microwave sources

Yang

et al. 2021

Nat Commun

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“…To demonstrate that the system supports two symmetry-broken CSs, we lock the detuning in the soliton step region (Δ = 3.9) using the scheme described in ref. [ 61 ]. We then excite solitons by mechanically perturbing the resonator.…”

Section: Resultsmentioning

confidence: 99%

“…This was achieved by using the detuning stabilization scheme first introduced in ref. [ 61 ]. Specifically, a low-power signal derived from the DFB laser is frequency shifted with a second AOM and launched into the resonator such that it counterpropagates with respect to the main pumps.…”

Section: Methodsmentioning

confidence: 99%

Spontaneous symmetry breaking of dissipative optical solitons in a two-component Kerr resonator

Nielsen

Garbin

et al. 2021

Nat Commun

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Dissipative solitons are self-localized structures that can persist indefinitely in open systems driven out of equilibrium. They play a key role in photonics, underpinning technologies from mode-locked lasers to microresonator optical frequency combs. Here we report on experimental observations of spontaneous symmetry breaking of dissipative optical solitons. Our experiments are performed in a nonlinear optical ring resonator, where dissipative solitons arise in the form of persisting pulses of light known as Kerr cavity solitons. We engineer symmetry between two orthogonal polarization modes of the resonator and show that the solitons of the system can spontaneously break this symmetry, giving rise to two distinct but co-existing vectorial solitons with mirror-like, asymmetric polarization states. We also show that judiciously applied perturbations allow for deterministic switching between the two symmetry-broken dissipative soliton states. Our work delivers fundamental insights at the intersection of multi-mode nonlinear optical resonators, dissipative structures, and spontaneous symmetry breaking, and expands upon our understanding of dissipative solitons in coherently driven Kerr resonators.

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“…Because the output consists of a superposition between the intracavity field and the reflected part (99%) of the driving field, a tunable bandstop filter is used to remove the latter prior to temporal measurements so as to improve the signal-to-noise ratio. To overcome fluctuations in the frequencies of the driving laser and the cavity modes, we actively lock the driving laser to a cavity resonance by using the schemes introduced in [38] and [34]. This allows us to systematically control the detuning between the laser and the cavity, and hence investigate the detuning-dependent properties of the CSs.…”

Section: Experimental and Numerical Methodsmentioning

confidence: 99%

Observations of Existence and Instability Dynamics of Near-Zero-Dispersion Temporal Kerr Cavity Solitons

Li¹,

Xu²,

Todd³

et al. 2021

Preprint

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Dissipative Kerr cavity solitons (CSs) are persisting pulses of light that manifest themselves in driven optical resonators and that have attracted significant attention over the last decade. Whilst the vast majority of studies have revolved around conditions where the resonator exhibits strong anomalous dispersion, recent studies have shown that solitons with unique characteristics and dynamics can arise under conditions of near-zero-dispersion driving. Here we report on experimental studies of the existence and stability dynamics of Kerr CSs under such conditions. In particular, we experimentally probe the solitons' range of existence and examine how their breathing instabilities are modified when group-velocity dispersion is close to zero, such that higher-order dispersion terms play a significant role. On the one hand, our experiments directly confirm earlier theoretical works that predict (i) breathing near-zero-dispersion solitons to emit polychromatic dispersive radiation, and (ii) that higher-order dispersion can extend the range over which the solitons are stable. On the other hand, our experiments also reveal a novel cross-over scenario, whereby the influence of higherorder dispersion changes from stabilising to destabilising. Our comprehensive experiments sample soliton dynamics both in the normal and anomalous dispersion regimes, and our results are in good agreement with numerical simulations and theoretical predictions.

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Invited Article: Emission of intense resonant radiation by dispersion-managed Kerr cavity solitons

Cited by 41 publications

References 56 publications

Dispersive-wave induced noise limits in miniature soliton microwave sources

Dispersive-wave induced noise limits in miniature soliton microwave sources

Spontaneous symmetry breaking of dissipative optical solitons in a two-component Kerr resonator

Observations of Existence and Instability Dynamics of Near-Zero-Dispersion Temporal Kerr Cavity Solitons

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