Kapitza light guiding in photonic mesh lattice

Muniz, André Luiz Marques; Alberucci, Alessandro; Jisha, Chandroth P.; Monika, Monika; Nolte, Stefan; Morandotti, Roberto; Peschel, Ulf

doi:10.1364/ol.44.006013

Cited by 20 publications

(8 citation statements)

References 27 publications

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“…pler (θ) as schematically illustrated in Fig. 1(a), similarly to the previous experimental fiber-optical implementations [29]. The length of loops is specially made different, such that the pulses propagating in the long loop are delayed with respect to pulses in the short loop by ∆τ = T long − T short .…”

Section: Introductionmentioning

confidence: 90%

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Optical Neural Network Based on Synthetic Nonlinear Photonic Lattices

Pankov,

Vatnik,

Sukhorukov

2021

Preprint

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We reveal that a synthetic photonic lattice based on coupled optical loops can be utilized as a neural network for processing of optical pulse sequences in time domain. As a proof-of-concept, we train the optical system to restore an initial shape of the pulse train from the signal distorted due to linear dispersion in a fiber-optic link. We also show efficient training of the optical network with an intrinsic Kerr-type nonlinearity for the realization of target nonlinear transmission functions and inference functionality for the discrimination of different pulse sequences. The theoretical modeling is performed under practical conditions and can guide future experimental realizations.

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Section: Introductionmentioning

confidence: 90%

“…Typical pulse durations and roundtrip times exploited in state-of-the-art fiber-optics based SPL are ∆τ ∼ 100 ns and T rt ∼ 20 µs [25]. In these systems, up to M = 200 roundtrips were achieved [29], which is sufficient to create fully connected ONN with N ≤ 100.…”

mentioning

confidence: 99%

Optical Neural Network Based on Synthetic Nonlinear Photonic Lattices

Pankov,

Vatnik,

Sukhorukov

2021

Preprint

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“…This effect has been first introduced by Kapitza while studying the dynamics of a forced inverted pendulum, [ 212 ] later on generalized to quantum mechanics [ 211 ] and recently experimentally demonstrated in optics using a fiber‐loop system. [ 213 ]…”

Section: Geometric Phase In Bulk Structuresmentioning

confidence: 99%

Geometric Phase in Optics: From Wavefront Manipulation to Waveguiding

Jisha

Nolte

Alberucci

2021

Laser & Photonics Reviews

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Geometric phase is a unifying and central concept in physics, including optics. As a matter of fact, optics played a pivotal role from the inception of this new paradigm, as some of the first experimental demonstrations have been carried out in optics. A specific type of geometric phase was first introduced by Pancharatnam while investigating interference effects between different polarizations. This specific type of geometric phase, nowadays called the Pancharatnam–Berry phase, is related to the variation of light polarization, encompassing exotic properties when compared with the dynamic phase associated with the optical path. The most widespread manifestation of the Pancharatnam–Berry phase occurs in the presence of a twisted anisotropic material, yielding a point‐wise phase modulation proportional to the local rotation angle of the material. Here the basic mechanism behind the Pancharatnam–Berry phase is discussed. The various applications of this relatively original concept in photonics are then reviewed, presenting both the most important results and manufactured devices reported in literature. The interplay between geometric phase and diffraction occurring in bulk structures is discussed in detail. In the latter case it is shown how geometric phase can be harnessed to generate a new kind of optical waveguide without the necessity of any index gradient.

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“…Various parameters including light intensities and phases (corresponding to the imaginary and real part of potentials), as well as the coupling coefficient of the coupler can be modulated in order to control the flow of light flexibility [21,22]. By engineering these parameters, a number of special phenomena have been investigated in SPLs, diametric drive acceleration [23], time mirror [24] and kapiza light [25]. Naturally, the discretized optical behaviors associated with discrete arrays such as discrete diffraction, Talbot effect [26], Bloch oscillation [27], Anderson localization [28], soliton [29] and other localized states with respect to defect, gauge fields and topological phase transition [30][31][32][33] have been realized in the SPLs under passive or PT -symmetric configurations.…”

Section: Introductionmentioning

confidence: 99%

Discretized optical dynamics in one-dimensionally synthetic photonic lattice

Wen,

Wang,

et al. 2020

Preprint

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Synthetic photonic lattice with temporally controlled potentials is a versatile platform for realizing wave dynamics associated with physical areas of optics and quantum physics. Here, discrete optics in one-dimensionally synthetic photonic lattice is investigated systematically, in which the light behavior is highly similar to those in evanescently coupled one-dimensional discrete waveguides. Such a synthetic dimension is constructed with position-dependent periodic effective gauge fields based on Aharonov-Bohm effect arising from the phase accumulations of the fiber loops. By tuning the phase accumulations and coupling coefficient of the coupler, the band translation and gap property can be modulated which further results in the impulse and tailored Gaussian wave packet responses as well as Talbot recurrences. In addition, Bloch oscillations and Anderson localization can also be obtained when the phase accumulations are linearly changed and weakly modulated in random, respectively. The periodic effective gauge fields configuration in our protocol enables SPL to be a research platform for one-dimensional dynamically modulated elements or even non-Hermitian waveguides.

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Kapitza light guiding in photonic mesh lattice

Cited by 20 publications

References 27 publications

Optical Neural Network Based on Synthetic Nonlinear Photonic Lattices

Optical Neural Network Based on Synthetic Nonlinear Photonic Lattices

Geometric Phase in Optics: From Wavefront Manipulation to Waveguiding

Discretized optical dynamics in one-dimensionally synthetic photonic lattice

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