Design and modeling of passive optical switches and power dividers using non-planar coupled fiber arrays

Hudgings, Janice; Molter, L.A.; Dutta, Mitra

doi:10.1109/3.892564

Cited by 28 publications

(19 citation statements)

References 27 publications

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“…The problem of energy transfer management in circular fiber arrays has always been in the focus of attention of 063845-3 communication optics, especially in connection with the search for the ways of all-optical switching and routing [11,20]. In a general context this can be seen as the steps towards implementation of the so-called guidonics [21].…”

Section: Energy Transfer In a Double-ring Arraymentioning

confidence: 99%

Energy transfer, orbital angular momentum, and discrete current in a double-ring fiber array

2011

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We study energy transfer and orbital angular momentum of supermodes in a double-ring array of evanescently coupled monomode optical fibers. The structure of supermodes and the spectra of their propagation constants are obtained. The geometrical parameters of the array, at which the energy is mostly confined within the layers, are determined. The developed method for finding the supermodes of concentric arrays is generalized for the case of multiring arrays. The orbital angular momentum carried by a supermode of a double-ring array is calculated. The discrete lattice current is introduced. It is shown that the sum of discrete currents over the array is a conserved quantity. The connection of the total discrete current with orbital angular momentum of discrete optical vortices is made.

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Section: Energy Transfer In a Double-ring Arraymentioning

confidence: 99%

Energy transfer, orbital angular momentum, and discrete current in a double-ring fiber array

2011

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“…According to it, a cyclical power transfer will take place among waveguides if they are close enough to interact. Its particularization for optical fibers and its corresponding theoretical and mathematical analysis is explained in detail in 23 , 24 . This particularization is valid for strongly coupled MCFs as well, as it is assumed that each of the cores acts as a waveguide.…”

Section: Introductionmentioning

confidence: 99%

“…Considering this, and based on the mathematical expressions for the normalized power coupling in 23,24 , it can be concluded that, for MCFs, the power coupling depends on the launched wavelength, on the length of the MCF segment and on the effective refractive indices of the aforementioned orthogonal propagating supermodes. Thus, for the case of the MCF that has been used in this work and described previously, the particularization of such mathematical equations provides the following expression for the normalized coupled power in the central core: Simulations made with PhotonDesign simulation software v6.6 (https ://www.photo nd.com/) of the 3D and 2D profiles of the two coupled orthogonal supermodes excited in the MCF.…”

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confidence: 98%

Compact omnidirectional multicore fiber-based vector bending sensor

Amorebieta

Ortega-Gomez

Durana

et al. 2021

Sci Rep

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We propose and demonstrate a compact and simple vector bending sensor capable of distinguishing any direction and amplitude with high accuracy. The sensor consists of a short segment of asymmetric multicore fiber (MCF) fusion spliced to a standard single mode fiber. The reflection spectrum of such a structure shifts and shrinks in specific manners depending on the direction in which the MCF is bent. By monitoring simultaneously wavelength shift and light power variations, the amplitude and bend direction of the MCF can be unmistakably measured in any orientation, from 0° to 360°. The bending sensor proposed here is highly sensitive even for small bending angles (below 1°).

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“…The uses of nonlinear fibre arrays for the all-optical signal processing have been recognised since the late 1980s. The multiple channel waveguide couplers and multicore fibres can be utilised for light switching [1,2], power dividing [3], beam shaping [4], discrete diffraction management [5], spatial-division multiplexing [6], coherent beam combination and optical pulse compression [7]. In recent years interest has been shifting to low-dimensional arrays, typically arranged in a ring [8,9].…”

Section: Introductionmentioning

confidence: 99%

Gyrating solitons in a necklace of optical waveguides

Barashenkov,

Feinstein

2021

Preprint

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We consider light pulses in a circular array of 2N coupled nonlinear optical waveguides. The waveguides are either hermitian or alternate gain and loss in a PT -symmetric fashion. Simple patterns in the array include a ring of 2N pulses travelling abreast, and a breather -a string of pulses where all even and all odd waveguides flash in turn. In addition, the structure displays solitons gyrating around the necklace by switching from one waveguide to the next. Some of the gyrating solitons are stable while other ones are weakly unstable and evolve into gyrating multiflash strings. By tuning the gain-loss coefficient, the gyration of solitons in a nonhermitian array may be reversed without changing the direction of their translational motion.

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Design and modeling of passive optical switches and power dividers using non-planar coupled fiber arrays

Cited by 28 publications

References 27 publications

Energy transfer, orbital angular momentum, and discrete current in a double-ring fiber array

Energy transfer, orbital angular momentum, and discrete current in a double-ring fiber array

Compact omnidirectional multicore fiber-based vector bending sensor

Gyrating solitons in a necklace of optical waveguides

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