Wavelength-Tunable Vortex Beam Emitter Based on Silicon Micro-Ring with PN Depletion Diode

Stepanov, I.V.; Fatkhiev, Denis M.; Lyubopytov, Vladimir S.; Kutluyarov, Ruslan V.; Grakhova, Elizaveta P.; Neumann, Niels; Хонина, С. Н.; Sultanov, Albert Kh.

doi:10.3390/s22030929

Cited by 6 publications

(5 citation statements)

References 55 publications

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“…Furthermore, a previous work [ 25 ] measured the radiation power at 9.8 a.u when the authors integrated a p-n diode into the MRR to control the vortex beam topological charge. Our research included simulations of an MRR-based vortex beam emitter without the coating, combining it with a phase change material.…”

Section: Discussionmentioning

confidence: 99%

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Micro-Ring Resonator-Based Tunable Vortex Beam Emitter

Bakirova,

Voronkov,

Lyubopytov

et al. 2023

Micromachines

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Light beams bearing orbital angular momentum (OAM) are used in various scientific and engineering applications, such as microscopy, laser material processing, and optical tweezers. Precise topological charge control is crucial for efficiently using vortex beams in different fields, such as information encoding in optical communications and sensor systems. This work presents a novel method for optimizing an emitting micro-ring resonator (MRR) for emitting vortex beams with variable orders of OAM. The MRR consists of a ring waveguide with periodic structures side-coupled to a bus waveguide. The resonator is tunable due to the phase change material Sb2Se3 deposited on the ring. This material can change from amorphous to crystalline while changing its refractive index. In the amorphous phase, it is 3.285 + 0i, while in the transition to the crystalline phase, it reaches 4.050 + 0i at emission wavelength 1550 nm. We used this property to control the vortex beam topological charge. In our study, we optimized the distance between the bus waveguide and the ring waveguide, the bending angle, and the width of the bus waveguide. The optimality criterion was chosen to maximize the flux density of the radiated energy emitted by the resonator. The numerical simulation results proved our method. The proposed approach can be used to optimize optical beam emitters carrying OAM for various applications.

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Section: Discussionmentioning

confidence: 99%

“…In this work, we propose an optimization method for an emitting MRR with a periodic grating structure (etched holes) side-coupled to a bus waveguide (single-bus resonator configuration), as shown in Figure 1 [ 25 ]. The optimization criterion is the maximization of the energy flux density.…”

Section: The Structure Of the Mrr-based Vortex Beam Emittermentioning

confidence: 99%

Micro-Ring Resonator-Based Tunable Vortex Beam Emitter

Bakirova,

Voronkov,

Lyubopytov

et al. 2023

Micromachines

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“…7, we assume to use a wavelength-tunable transmitter design based on a silicon-oninsulator platform as the vortex beam emitter. In [33], the authors proposed using a ring resonator in which a p-n diode with reverse bias is embedded. A reverse-biased p-n junction allowed the authors to provide more energy-efficient and faster switching.…”

Section: Discussionmentioning

confidence: 99%

OAM-beams prospects in sensing applications based on microring resonators

Bakirova,

Voronkov,

Elizaveta

2023

Optical Technologies for Telecommunications 2022

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This paper analyzes the prospects for applying optical beams carrying orbital angular momentum (vortex beams) for sensing. We give short retrospectives on environmental properties one can measure with vortex beams, such as liquids turbulence, temperature, and movement. We also propose a new method based on photonic integrated circuits for determining liquids’ refractive index and turbulent properties using vortex beams. The essence of the method is to measure the refractive index and detect the vortex order simultaneously. The developing sensor consists of two microring resonators: a vortex emitter, which also acts as a refractive index-based temperature sensor, and a receiver. This method can potentially increase the measurements’ accuracy and measure the liquid’s turbulence.

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“…Table 2 Still in the spatial domain, generating OAM beams at the nanoscale is of significant interest for various applications in nanophotonics [95,96] and optical device miniaturization [97]. Recent developments in the creation and detection of optical vortex as well as some of its applications are observed in photonic integrated circuits [98][99][100][101][102][103], micro-ring resonators [104][105][106][107][108][109][110][111], metamaterials [112][113][114][115][116][117][118][119][120], plasmonic nanostructures [121][122][123][124], and metasurfaces [125][126][127][128], which offer precise control over the phase, amplitude, and polarization of light at the nanoscale. By engineering the meta-atoms on a metasurface, it is possible to design them to introduce a tailored phase gradient, resulting in the generation of OAM beams.…”

Section: Spatial-generating Methodsmentioning

confidence: 99%

Generation of Photon Orbital Angular Momentum and Its Application in Space Division Multiplexing

2023

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In the last three decades, light’s orbital angular momentum (OAM) has been of great interest because it has unique characteristics that make it sought after in many research fields, especially in optical communications. To address the exponentially increasing demands for higher data rates and capacity in optical communication systems, OAM has emerged as an additional degree of freedom for multiplexing and transmitting multiple independent data streams within a single spatial mode using the spatial division multiplexing (SDM) technology. Innumerable research findings have proven to scale up the channel capacity of communication links by a very high order of magnitude, allowing it to circumvent the reaching of optical fiber’s non-linear Shannon limit. This review paper provides a background and overview of OAM beams, covering the fundamental concepts, the various OAM generators, and the recent experimental and commercial applications of the OAM-SDM multiplexing technique in optical communications.

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Wavelength-Tunable Vortex Beam Emitter Based on Silicon Micro-Ring with PN Depletion Diode

Cited by 6 publications

References 55 publications

Micro-Ring Resonator-Based Tunable Vortex Beam Emitter

Micro-Ring Resonator-Based Tunable Vortex Beam Emitter

OAM-beams prospects in sensing applications based on microring resonators

Generation of Photon Orbital Angular Momentum and Its Application in Space Division Multiplexing

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