Optical vortices and topological phase in strongly anisotropic coiled few-mode optical fibers

Alexeyev, C N; Lapin, B. P.; Yavorsky, M. A.

doi:10.1364/josab.24.002666

Cited by 26 publications

(19 citation statements)

References 43 publications

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“…In this case the Berry's phase Along with changes in the topological phase, the physical manifestation of topological effects connected with this type of geometric phase changes, too. For the OAMbearing beams this phase manifests itself not only through polarization rotation [16], but also as a rotation of intensity patterns at the output fibre end [16,17]. Exactly this type of topological effects has been reported in [8][9][10], which is also in compliance with theoretical predictions made in [15].…”

Section: Introductionsupporting

confidence: 70%

“…Later this expression has been confirmed for the OVs propagating in the coiled few-mode optical fibres [16]. Quite recently, it has been demonstrated that one can implement the situation of scalar-field OVs in anisotropic coiled fibres, where the spin component of the total angular momentum (AM) is in effect suppressed by material anisotropy [17]. In this case the Berry's phase Along with changes in the topological phase, the physical manifestation of topological effects connected with this type of geometric phase changes, too.…”

Section: Introductionmentioning

confidence: 88%

“…Those studies have established that the 0 = l modes of anisotropic and elliptical coiled fibres are given by locally elliptically polarized fields. As for the higher order modes, they have been studied only for the ideal coiled [16,18] and anisotropic [17] fibres.…”

Section: The Model and Basic Equationsmentioning

confidence: 99%

“…In anisotropic coiled single-mode fibres the topological phase can be essentially suppressed by the anisotropy [6,19]. The material anisotropy can also suppress the topological Berry phase connected with higher-order modes in fewmode coiled fibres [17]. It is remarkable that the topological effects appear just at those values of anisotropy (i.e., perturbation), for which the fibre modes assume the structure of AM-bearing fields.…”

Section: Introductionmentioning

confidence: 99%

“…Quite counter-intuitively, for the regimes of large anisotropy the topological phase correction hybridizes with the terms induced by spin-orbit interaction (SOI), whose absolute values are much less in the order of magnitude than those of the anisotropyinduced terms [17]. That is why the topological effects are easily observable in highly anisotropic fibres.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Higher order modes and topological phase in the coiled elliptical weakly guiding optical fibres

Alexeyev¹,

Lapin²,

Yavorsky³

2008

Ukr. J. Phys. Opt.

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Abstract.We study the structure of l = 1 modes in strongly elliptical coiled weakly guiding optical fibres. We establish analytically the expressions for the modes and their polarization corrections. We show that, at certain parameters of the fibre helix, the l = 1 modes are represented in the local Frenet frame by uniform elliptically polarized fields. We demonstrate that the modes turn into circularly polarized fields if the coiling-induced perturbation becomes larger than the intrinsic spinorbit coupling. In this case the propagation constants comprise geometrically induced terms proportional to the spin angular momentum of the mode and a topological phase appears in the system. We show that the presence of such a geometric phase exhibits itself in the rotation of polarization plane of LP mode excited in the fibre. The rotation angle is found to be equal to the solid angle subtended by the coil.

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Section: Introductionsupporting

confidence: 70%

Section: Introductionmentioning

confidence: 88%

Section: The Model and Basic Equationsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Higher order modes and topological phase in the coiled elliptical weakly guiding optical fibres

Alexeyev¹,

Lapin²,

Yavorsky³

2008

Ukr. J. Phys. Opt.

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Optical‐fiber microcoil waveguides and resonators and their applications for interferometry and sensing

Scheuer

Sumetsky²

2011

Laser & Photonics Reviews

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In this work, recent progress in the theoretical and experimental studies of optical-fiber microcoil waveguides and resonators, as well as their various applications are reviewed. In particular, the focus is set on sensing and interferometry applications. It is shown that due to its inherently low propagation and fiber-coupling losses, fiber-microcoil based sensors and interferometers offer substantial enhancement of sensitivity and compactness compared to other types of devices. Recent progress in the realization and experimental characterization of such structures is presented and the theoretical tools to analyze the impact of real-world nonuniformities on the characteristics of fiber-microcoil structures are provided.

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Fresnel tomography and interferometric technique for characterizing Laguerre–Gaussian beams

et al. 2010

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Optical vortices and topological phase in strongly anisotropic coiled few-mode optical fibers

Cited by 26 publications

References 43 publications

Higher order modes and topological phase in the coiled elliptical weakly guiding optical fibres

Higher order modes and topological phase in the coiled elliptical weakly guiding optical fibres

Optical‐fiber microcoil waveguides and resonators and their applications for interferometry and sensing

Fresnel tomography and interferometric technique for characterizing Laguerre–Gaussian beams

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