Experimental generation of optical flaticon pulses

Varlot, Bastien; Wabnitz, Stefan; Fatome, Julien; Millot, Guy; Finot, Christophe

doi:10.1364/ol.38.003899

Cited by 29 publications

(27 citation statements)

References 14 publications

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“…Under certain regimes, the behavior of light mimics the dynamics of classical fluids and, in particular, hydrodynamical phenomena [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15]. The general ground for such observation lies on the reduction of Maxwell equations to the typical models of hydrodynamics, as recognized long ago for both dissipative (i.e., lasers [1,2]) and conservative settings [3].…”

Section: Introductionmentioning

confidence: 95%

Observation of Optical Undular Bores in Multiple Four-Wave Mixing

et al. 2014

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We demonstrate that wave-breaking dramatically affects the dynamics of nonlinear frequency conversion processes that operate in the regime of high efficiency (strong multiple four-wave mixing). In particular, by exploiting an all-optical-fiber platform, we show that input modulations propagating in standard telecom fibers in the regime of weak normal dispersion lead to the formation of undular bores (dispersive shock waves) that mimic the typical behavior of dispersive hydrodynamics exhibited, e.g., by gravity waves and tidal bores. Thanks to the nonpulsed nature of the beat signal employed in our experiment, we are able to clearly observe how the periodic nature of the input modulation forces adjacent undular bores to collide elastically

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Section: Introductionmentioning

confidence: 95%

Observation of Optical Undular Bores in Multiple Four-Wave Mixing

et al. 2014

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“…DSWs have also been observed and extensively studied in the context of nonlinear optics [10][11][12][13][14][15][16][17][18][19][20][21][22] . In particular, it is well-known that light behaves as an ideal inviscid perfect fluid in an optical medium that exhibits a weakly self-defocusing Kerr nonlinearity 11,[18][19][20][21] .…”

mentioning

confidence: 99%

“…Ever since the pioneering work by Rothenberg and co-workers in optical fibers about two decades ago 10 , tremendous efforts have been dedicated to develop powerful testbed platforms, which are capable of mimicking fluid-type DSWs with nonlinear optics [11][12][13][14][15][16][17][18] . Unfortunately, despite extensive attempts, the experimental generation and characterization of pure optical DSW remain challenging.…”

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confidence: 99%

Vectorial dispersive shock waves in optical fibers

Nuño

Finot

et al. 2019

Commun Phys

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Dispersive shock waves are a universal phenomenon encountered in many fields of science, ranging from fluid dynamics, Bose-Einstein condensates and geophysics. It has been established that light behaves as a perfect fluid when propagating in an optical medium exhibiting a weakly self-defocusing nonlinearity. Consequently, this analogy has become attractive for the exploration of dispersive shock wave phenomena. Here, we observe of a novel class of vectorial dispersive shock waves in nonlinear fiber optics. Analogous to blast-waves, identified in inviscid perfect fluids, vectorial dispersive shock waves are triggered by a nonuniform double piston imprinted on a continuous-wave probe via nonlinear cross-phase modulation, produced by an orthogonally-polarized pump pulse. The nonlinear phase potential imparted on the probe results in the formation of an expanding zone of zero intensity surrounded by two repulsive oscillating fronts, which move away from each other with opposite velocities.

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“…Shock formation is accompanied by the emergence of multiple frequency components that mix nonlinearly to produce new frequency components by four-wave mixing resulting in significand spectrum broadening. Platicons generated in optical microresonators look similar to "flaticons" demonstrated in optical fibers with normal GVD [31] or dispersive shock waves in an externally driven passive Kerr resonator with weak normal dispersion [32]. However, in contrast to quickly evolving flaticons and shock waves platicons are stationary soliton-like waveforms in time.…”

mentioning

confidence: 83%

Generation of platicons and frequency combs in optical microresonators with normal GVD by modulated pump

Lobanov¹,

Lihachev²,

Gorodetsky³

2015

EPL

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We demonstrate that flat-topped dissipative solitonic pulses, "platicons", and corresponding frequency combs can be excited in optical microresonators with normal group velocity dispersion using either amplitude modulation of the pump or bichromatic pump. Soft excitation may occur in particular frequency range if modulation depth is large enough and modulation frequency is close to the free spectral range of the microresonator.Optical frequency combs generated in mode-locked lasers have revolutionized optical measurements. Last years optical microresonators have been attracting growing attention as a promising platform for microresonator-based Kerr frequency-combs [1][2][3]. It was demonstrated both theoretically and experimentally that frequency comb consisting of equidistant optical lines in spectral domain may appear in a nonlinear microresonator pumped by a c.w. laser due to the cascaded four-wave mixing processes. The frequency spacing between comb lines corresponds to the free spectral range (FSR, typically tens of GHz up to THz) of the microresonator which is the inverted round-trip time of light in the cavity. Microresonator-based combs were shown to perform at the level required for optical-frequency metrology applications [5] and for optical communications [6]. However, such systems often suffer from significant frequency and amplitude noise [7,8] due to the formation of sub-combs [9]. In contrast to conventional mode-locked laserbased frequency combs microresonator combs do not correspond, generally, to stable ultrashort pulses in the time domain because of arbitrary phase relations between the comb lines obtained in the process of formation. Kerr solitons solve this problem with a c.w. laser beam converted into a train of pulses, corresponding to a low-noise frequency comb having smooth spectral envelope in the spectral domain. This regime was demonstrated experimentally in optical crystalline and integrated ring microresonators with anomalous group velocity dispersion (GVD) [10,11]. The limitation of this approach is the difficulty to obtain anomalous GVD in broad band for arbitrary centered wavelength in microresonators since material GVD in the visible and near IR is mostly

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Experimental generation of optical flaticon pulses

Cited by 29 publications

References 14 publications

Observation of Optical Undular Bores in Multiple Four-Wave Mixing

Observation of Optical Undular Bores in Multiple Four-Wave Mixing

Vectorial dispersive shock waves in optical fibers

Generation of platicons and frequency combs in optical microresonators with normal GVD by modulated pump

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