Control of adiabatic light transfer in coupled waveguides with longitudinally varying detuning

Oukraou, Hassan; Vittadello, Laura; Coda, Virginie; Ciret, Charles; Alonzo, Massimo; Rangelov, Andon A.; Vitanov, Nikolay V.; Montemezzani, Germano

doi:10.1103/physreva.95.023811

Cited by 33 publications

(22 citation statements)

References 43 publications

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“…The analogy between quantum mechanics and wave optics provides an elegant tool to design optical waveguide arrays and even photonic lattices, as shown in a review by S Longhi [9]. Various adiabatic (three) waveguide coupler devices [10][11][12][13][14][15][16][17][18][19][20], including high-tolerance directional couplers and broadband beam splitters, are proposed based on the optical analogy of a stimulated Raman adiabatic passage (STIRAP) or coherent tunnelling adiabatic passage (CTAP) in quantum optics; see the current review [21,22]. Recently, shortcuts to adiabaticity (STA) have been proposed to speed up adiabatic state evolution in quantum systems [23].…”

Section: Introductionmentioning

confidence: 99%

Compact beam splitters in coupled waveguides using shortcuts to adiabaticity

Chen¹,

Wen²,

Shi³

et al. 2018

J. Opt.

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There are various works on adiabatic (three) waveguide coupler devices but most are focused on the quantum optical analogies and the physics itself. We successfully apply shortcuts to adiabaticity techniques to the coupled waveguide system with a suitable length for integrated optics devices. Especially, the counter-diabatic driving protocol followed by unitary transformation overcomes the previously unrealistic implemention, and is used to design feasible and robust 1×2 and 1×3 beam splitters for symmetric and asymmetric three waveguide couplers. Numerical simulations with the beam propagation method demonstrate that these shortcut designs for beam splitters are shorter than the adiabatic ones, and also have a better tolerance than parallel waveguides resonant beam splitters with respect to spacing errors and wavelength variation.

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Section: Introductionmentioning

confidence: 99%

Compact beam splitters in coupled waveguides using shortcuts to adiabaticity

Chen¹,

Wen²,

Shi³

et al. 2018

J. Opt.

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“…To this end, we can also highlight the similarity of the present work with the studies of adiabatic passage in coupled optical waveguide systems [18][19][20][21] which are, in turn, introduced as classical optic analogies of quantum adiabatic dynamics of atomic levels that are coupled and driven by light. Primarily known as the rapid adiabatic passage (RAP) [22,23] and stimulated Raman adiabatic passage (STIRAP) [23,24], these mechanisms found diverse implementations in atomic and molecular optics, cavity quantum electrodynamics, cold atom systems, and classical wave optics.…”

Section: Introductionmentioning

confidence: 71%

“…The scheme is based on the Allen-Eberly transition scheme for two-level atoms [22]. Another work [21] presents the Raman adiabatic passage-like transfer of light between a straight and a curved waveguide where the propagation constants and the coupling are again modified spatially. Since our present work deals with the transitions between quasistationary states (see Sec.…”

Section: Kmentioning

confidence: 99%

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Asymmetric Rosen-Zener–like transition through a soliton–surface-plasmon photonic Josephson junction with spatially varying coupling

Aydındoğan

Güven

2017

Phys. Rev. A

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The transition dynamics of photons between an optical soliton in a nonlinear dielectric waveguide and a spatially coupled surface-plasmon excitation on a parallel flat metal surface can be formulated in analogy to that of a Josephson junction of two-level (double-well) Bose-Einstein condensates, albeit with a nonlinear coupling that inherently depends on the population imbalance of the levels. The present work demonstrates that asymmetric Rosen-Zener-like transitions can be obtained through this optical Josephson junction, by turning on and off the coupling across a hyperbolically varying separation between the soliton and the surface-plasmon. The transitions can generate full population transfer, population splitting, or merging between the quasistationary initial and final states, which are defined by a fixed population imbalance in the decoupled limit. Transitions from a pure soliton or pure surface-plasmon initial state are found to be robust against the relative phase, whereas the transitions from an initial state with mixed population depend strongly on the relative phase. The soliton-surface-plasmon system also bears similarities to the spatially coupled optical waveguides which are introduced further as the classical analogs of the spatial adiabatic passage and stimulated Raman adiabatic passage mechanisms in quantum and atom optics.

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“…Specifically, it permits broadband operation. Such analogies have been successfully used to experimentally demonstrate broadband light transfer [18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Broadband integrated polarization beam splitting based on anisotropic adiabatic transfer of light

et al. 2019

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To cite this version:Rim Alrifai, Virginie Coda, Andon Rangelov, Germano Montemezzani. Broadband integrated polarization beam splitting based on anisotropic adiabatic transfer of light.A concept for the realization of waveguide-based polarization beam splitters working over a wide spectral range is presented. The adiabatically evolving three-waveguide system is inspired by the quantum-mechanical stimulated Raman adiabatic passage process and involves waveguides with an anisotropic refractive index contrast. It is shown that an index contrast ratio of 5 is sufficient to obtain excellent efficiency and output polarization purity over a spectral range approximately equal to 350 nm centered at a wavelength of 1550 nm. The center wavelength can be easily modified by tuning the parameters of the waveguides.

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Control of adiabatic light transfer in coupled waveguides with longitudinally varying detuning

Cited by 33 publications

References 43 publications

Compact beam splitters in coupled waveguides using shortcuts to adiabaticity

Compact beam splitters in coupled waveguides using shortcuts to adiabaticity

Asymmetric Rosen-Zener–like transition through a soliton–surface-plasmon photonic Josephson junction with spatially varying coupling

Broadband integrated polarization beam splitting based on anisotropic adiabatic transfer of light

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