Article
Optics
Nicolas Englebert, Carlos Mas Arabi, Pedro Parra-Rivas, Simon-Pierre Gorza, Francois Leo
Summary: By introducing the concept of active cavity solitons and using a hybrid driving method, high-power ultra-stable pulse trains can be efficiently generated. This innovative approach overcomes the important barrier of working in low-loss environments, providing a new avenue for frequency comb formation.
Article
Physics, Multidisciplinary
Bruno Garbin, Julien Fatome, Gian-Luca Oppo, Miro Erkintalo, Stuart G. Murdoch, Stephane Coen
Summary: Dissipative polarization domain walls have been experimentally realized in a nonlinear optical fiber ring resonator, where these walls are formed through symmetry breaking bifurcation and consist of temporally localized structures. These domain walls can persist in the resonator without changing shape and can be pinned at specific positions for long periods of time. This research could be beneficial for analog simulations of domain-wall related phenomena and for developing an all-optical buffer for the transmission of topological bits.
PHYSICAL REVIEW LETTERS
(2021)
Article
Physics, Multidisciplinary
Nicolas Englebert, Nathan Goldman, Miro Erkintalo, Nader Mostaan, Simon-Pierre Gorza, Francois Leo, Julien Fatome
Summary: Synthetic dimensions can introduce band properties without a periodic structure in real space, and a study in an optical resonator has now shown non-linear soliton states in synthetic frequency space. By coupling the discrete degrees of freedom of a physical system, synthetic dimensions can construct fictitious lattice structures, providing a way to study band properties in the absence of a real periodic lattice structure. Non-linearities and dissipation in synthetic dimensions have potential for rich physics, but have not been extensively explored.
Article
Physics, Multidisciplinary
B. Garbin, A. Giraldo, K. J. H. Peters, N. G. R. Broderick, A. Spakman, F. Raineri, A. Levenson, S. R. K. Rodriguez, B. Krauskopf, A. M. Yacomotti
Summary: The study reports the first experimental observation of spontaneous mirror symmetry breaking in coherently driven-dissipative coupled optical cavities, shedding light on the underlying mechanism and observed phenomenon. The results pave the way for further exploration of limit cycles and deterministic chaos arising from spontaneous mirror symmetry breaking.
PHYSICAL REVIEW LETTERS
(2022)
Article
Optics
Yifan Sun, Pedro Parra-Rivas, Mario Ferraro, Fabio Mangini, Mario Zitelli, Raphael Jauberteau, Francesco Rinaldo Talenti, Stefan Wabnitz
Summary: This study analyzes the stability and dynamics of dissipative Kerr solitons (DKSs) in the presence of a parabolic potential. The potential stabilizes oscillatory and chaotic regimes, promoting the generation of static DKSs. Additionally, the potential induces the emergence of new dissipative structures, such as asymmetric breathers and chimera-like states. By decomposing these states into modes, the underlying modal interactions are revealed.
Article
Optics
Rostislav Arkhipov, Mikhail Arkhipov, Anton Pakhomov, Ihar Babushkin, Nikolay Rosanov
Summary: This article theoretically investigates the possibility of achieving passive mode-locking in a two-section laser with an ultrashort cavity. It is shown that coherent mode-locking phenomena arising from self-induced transparency can enable the generation of output pulses with terahertz repetition rate and extremely short duration. Additionally, several scaling rules are derived to further shorten the pulse duration by scaling the media parameters.
Article
Optics
Chunling Ding, Jiahua Li, Xiao Dai, Rui-Bo Jin, Xiangying Hao
Summary: The study investigates the azimuthal and radial modulation of double-four-wave mixing by using higher-order Laguerre-Gaussian beams in Landau quantized graphene ensemble. The findings reveal unique phase and intensity profiles, including phase jumps, concentric rings, and raised narrow rings, depending on the radial orders and azimuthal orders of the beams. The potential applications of these results in graphene-based nonlinear optical devices using LG beams with adjustable mode orders are highlighted.
Article
Optics
A. Bartolo, T. G. Seidel, N. Vigne, A. Garnache, G. Beaudoin, I Sagnes, M. Giudici, J. Javaloyes, S. Gurevich, M. Marconi
Summary: The study explores the impact of optical feedback on the dynamics of an external-cavity passively mode-locked surface-emitting laser, demonstrating that feedback acts as a solution selector that can either enhance or hinder the appearance of multistable harmonic arrangements of pulses. The theoretical analysis successfully replicates the experimental results and highlights asymmetrical resonance tongues caused by parity symmetry-breaking induced by gain depletion.
Article
Optics
In Hwan Do, Daewon Suk, Dongin Jeong, Seokjoo Go, Kiyoung Ko, Hyun-gue Hong, Dai-hyuk Yu, Jae Hoon Lee, Hansuek Lee
Summary: The interaction dynamics between optical parametric oscillation (OPO) and stimulated Raman scattering are successfully controlled, resulting in distinct frequency comb states in a microresonator. A Raman comb with a sech2 envelope is demonstrated through Raman-scattered photons, with a broad RF beat note linewidth. Furthermore, self-locked Raman single-solitons are generated under a specific coupling regime, confirmed by a narrow RF beat note. This study has significant implications for the generation and control of frequency combs.
Article
Optics
Matthew Macnaughtan, Miro Erkintalo, Stephane Coen, Stuart Murdoch, Yiqing Xu
Summary: In this study, Kerr cavities driven in the normal dispersion regime were investigated, and switching waves were found. The fine structure of individual switching waves, including resonant oscillations, was directly observed with nanosecond pulses. The intimate connection between the temporal and spectral features of the dispersive waves associated with switching waves was demonstrated, and the evolution of these dispersive waves with cavity parameters was investigated. Additionally, the generation and observation of stable and persistent dark pulses under quasi-CW pumping conditions were achieved, validating the accuracy of the dispersive wave formalism used.
Article
Optics
Denis Hessel, Svetlana Gurevich, Julien Javaloyes
Summary: The emergence of wiggling temporal localized states in a passively mode-locked vertical external-cavity surface-emitting laser is analyzed. The wiggling instability stems from the interplay between third-order dispersion and frequency mismatch induced by micro-cavities. The homoclinic scenario underlying the wiggling phenomenon allows for control of oscillation parameters.
Article
Engineering, Electrical & Electronic
Jianxing Pan, Tianye Huang, Zhichao Wu, Yutian Wang, Chaoyu Xu, Jing Zhang, Luming Zhao
Summary: Kerr microresonators are attracting attention for their high integration, compatible fabrication, and low energy consumption; they can generate dissipative solitons called cavity solitons and even form ideal equidistant soliton crystal states.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2023)
Article
Optics
Parvendra Kumar, Agnikumar G. Vedeshwar
Summary: This theoretical paper demonstrates how maximizing coherence results in the squeezing of a cavity field coupled to a coherently driven single quantum dot. It employs a polaron master equation theory to accurately incorporate the impact of exciton-phonon coupling on squeezing.
Article
Optics
Jia Zeng, Jianxing Pan, Zhichao Wu, Tianye Huang, Dan Luo, Jing Zhang, Perry Ping Shum
Summary: This paper reports numerical simulation on the manipulation of Kerr cavity solitons (CSs) using the projected super-position technique. The positions and amplitudes of the CSs can be adjusted by setting intra-cavity parameters. By introducing a polarization controller and an inline polarization beam splitter, the CSs can be projected, superposed, and manipulated flexibly to operate with controllable soliton positions and amplitudes. The number of solitons after projection would change based on different types of CSs, depending on the time separation between two polarization components.
OPTICS COMMUNICATIONS
(2022)
Article
Mathematics, Interdisciplinary Applications
F. Prati, L. A. Lugiato, A. Gatti, L. Columbo, C. Silvestri, M. Gioannini, M. Brambilla, M. Piccardo, F. Capasso
Summary: This study derives a new set of equations for a ring quantum cascade laser with fast material dynamics, reducing numerical load as they evolve on the time scale of the electric field. Close to laser threshold, the equations resemble the generalized Lugiato-Lefever equation, allowing for the investigation of multi-peaked localized structures and their stability, forming a snaking pattern within a global context.
CHAOS SOLITONS & FRACTALS
(2021)
Article
Optics
Yiqing Xu, Alexander Sharples, Julien Fatome, Stephane Coen, Miro Erkintalo, Stuart G. Murdoch
Summary: Researchers demonstrate that Kerr microresonators driven by pulsed pump sources no longer require localized dispersion perturbations to initiate the formation of optical frequency combs. By controlling the desynchronization between the pump repetition rate and the cavity free-spectral range, they can tune the center frequency of the output comb. Additionally, under large pump-cavity desynchronization, a new form of Raman-assisted anomalous dispersion cavity soliton is supported.
Article
Physics, Multidisciplinary
Bruno Garbin, Julien Fatome, Gian-Luca Oppo, Miro Erkintalo, Stuart G. Murdoch, Stephane Coen
Summary: Dissipative polarization domain walls have been experimentally realized in a nonlinear optical fiber ring resonator, where these walls are formed through symmetry breaking bifurcation and consist of temporally localized structures. These domain walls can persist in the resonator without changing shape and can be pinned at specific positions for long periods of time. This research could be beneficial for analog simulations of domain-wall related phenomena and for developing an all-optical buffer for the transmission of topological bits.
PHYSICAL REVIEW LETTERS
(2021)
Article
Multidisciplinary Sciences
Gang Xu, Alexander U. Nielsen, Bruno Garbin, Lewis Hill, Gian-Luca Oppo, Julien Fatome, Stuart G. Murdoch, Stephane Coen, Miro Erkintalo
Summary: Researchers observed spontaneous symmetry breaking of dissipative optical solitons in a nonlinear optical ring resonator, leading to the coexistence of distinct vectorial solitons with asymmetric polarization states. By perturbing the system, deterministic switching between the two symmetry-broken dissipative soliton states can be achieved. This work provides fundamental insights into multi-mode nonlinear optical resonators, dissipative structures, and spontaneous symmetry breaking in coherently driven Kerr resonators.
NATURE COMMUNICATIONS
(2021)
Article
Optics
Gang Xu, Lewis Hill, Julien Fatome, Gian-Luca Oppo, Miro Erkintalo, Stuart G. Murdoch, Stephane Coen
Summary: This study investigates the instabilities of symmetry-broken, vectorial, bright cavity solitons using both theoretical and experimental approaches. Two different breathing regimes were identified through comprehensive theoretical analyses, and these findings were confirmed through experiments.
Article
Optics
Yiqing Xu, Miro Erkintalo, Yi Lin, Stephane Coen, Huilian Ma, Stuart G. Murdoch
Summary: Dual-microcomb generation via synchronous pulsed pumping of a single microresonator has been experimentally demonstrated, showing the generation of coherent dissipative Kerr cavity soliton combs on both polarization axes. This technique has potential applications in spectroscopic measurements.
Article
Physics, Multidisciplinary
Pierce C. Qureshi, Vincent Ng, Farhan Azeem, Luke S. Trainor, Harald G. L. Schwefel, Stephane Coen, Miro Erkintalo, Stuart G. Murdoch
Summary: This paper investigates the scattering of an externally injected probe wave from a dissipative cavity soliton in a Kerr microresonator, and demonstrates the potential of using this nonlinear interaction to expand the soliton frequency comb. The research shows that the detuning of the injected probe from a cavity resonance plays a key role in controlling the central frequency and spectral envelope of the comb.
COMMUNICATIONS PHYSICS
(2022)
Article
Optics
Nicolas Berti, Stephane Coen, Miro Erkintalo, Julien Fatome
Summary: The extreme temporal compression of optical waveforms, including non-trivial on-demand time reversal, is demonstrated using counterpropagating degenerate four-photon interaction in birefringent optical fibres. The system generates ultrafast replica of data packets with record temporal compression factors ranging from 4,350 to 13,000.
Article
Optics
Vincent Ng, Farhan Azeem, Luke S. Trainor, Harald G. L. Schwefel, Stephane Coen, Miro Erkintalo, Stuart G. Murdoch
Summary: Parametric oscillation in Kerr microresonators offers a promising method to generate new optical frequencies in a compact and low-power device. However, the generation of large frequency shift sidebands usually requires precise phasematching, which is limited by the resonator's dispersion profile. In this paper, we propose a multimode four-wave-mixing process that relaxes the phasematching requirements, allowing the formation of large frequency shift sidebands even in resonators with strong second-order dispersion. Experimental results using a magnesium-fluoride micro-disk resonator demonstrate the generation of four distinct multimode parametric processes with frequency shifts ranging from 118 to 216 THz, achieving a separation of almost three octaves between the two sidebands.
Article
Optics
Yiqing Xu, Shuang Liu, Pierce Qureshi, Miro Erkintalo, Stephane Coen, Huilian Ma, Stuart G. Murdoch
Summary: Soliton microresonator frequency combs are a new type of optical comb source that can be extended in optical bandwidth by injecting an optical probe wave. This study focuses on the interaction between solitons and linear waves in different mode families and derives an expression for the phase-matched idler locations based on the dispersion of the resonator and the phase detuning of the injected probe. Experimental confirmation is provided using a silica waveguide ring microresonator.
Article
Optics
Liam Quinn, Gang Xu, Yiqing Xu, Zongda Li, Julien Fatome, Stuart G. Murdoch, Stephane Coen, Miro Erkintalo
Summary: We demonstrate an all-optical random number generator based on spontaneous symmetry breaking in a coherently driven Kerr resonator. Random bit sequences are generated by repeatedly tuning a control parameter across a symmetry-breaking bifurcation that enacts random selection between two possible steady-states of the system. The generated bits have a rate of 3 MHz without post-processing and their randomness is verified using statistical test suites.
Article
Optics
Matthew Macnaughtan, Miro Erkintalo, Stephane Coen, Stuart Murdoch, Yiqing Xu
Summary: In this study, Kerr cavities driven in the normal dispersion regime were investigated, and switching waves were found. The fine structure of individual switching waves, including resonant oscillations, was directly observed with nanosecond pulses. The intimate connection between the temporal and spectral features of the dispersive waves associated with switching waves was demonstrated, and the evolution of these dispersive waves with cavity parameters was investigated. Additionally, the generation and observation of stable and persistent dark pulses under quasi-CW pumping conditions were achieved, validating the accuracy of the dispersive wave formalism used.
Article
Optics
Caleb Todd, Zongda Li, Stuart G. Murdoch, Gian-Luca Oppo, Miro Erkintalo
Summary: Temporal Kerr cavity solitons are light pulses that can exist in coherently driven, dispersive resonators with Kerr-type nonlinearity. Previous studies have assumed that the inhomogeneity of the driving field varies slowly across the soliton, leading to linear soliton drift rate. However, in some cases, such as using bichromatic driving or in the presence of third-order dispersion, the assumption of slowly varying inhomogeneity may not hold true.
Article
Optics
Pierce C. Qureshi, Farhan Azeem, Luke S. Trainor, Harald G. Schwefel, Stephane Coen, Miro Erkintalo, Stuart G. Murdoch
Summary: Optical microresonators are used to generate optical frequency combs, and the parameters of the radio-frequency comb spectrum can be finely-tuned by interfering two optical pumps with different azimuthal mode numbers. Experimental results show that a discrete tunability of about 1MHz in the line-spacing of the radio-frequency comb can be achieved.
Proceedings Paper
Engineering, Electrical & Electronic
Yiqing Xu, Alexander Sharples, Julien Fatome, Stephane Coen, Miro Erkintalo, Stuart G. Murdoch
Summary: In this passage, Kerr combs are demonstrated in a purely normal dispersion pulse-driven fiber mini-resonator, where both spectral extents and line spacing of the output comb can be controlled through harmonic driving and tunable desynchronization.
2021 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO)
(2021)
Proceedings Paper
Engineering, Electrical & Electronic
Gang Xu, Alexander Nielsen, Bruno Garbin, Lewis Hill, Gian-Luca Oppo, Julien Fatome, Stuart G. Murdoch, Stephane Coen, Miro Erkintalo
2021 CONFERENCE ON LASERS AND ELECTRO-OPTICS EUROPE & EUROPEAN QUANTUM ELECTRONICS CONFERENCE (CLEO/EUROPE-EQEC)
(2021)
