Analysis of the selectivity properties of volumetric holograms in radio-photonic devices

The importance of the use of radio-photonics in telecommunication equipment is shown. The place and tasks of volumetric holograms in radio-photonic devices are described. The urgency of the problem of studying the properties of selectivity of a volume hologram, which determine the influence of this hologram on the parameters of the light flux in a radio photonics device, has been substantiated. The analysis of the exposure conditions of the volume hologram for the formation of the structure of the striations, providing its spectral and spatial selectivity to the light flux. A reasonable choice of the type of photographic material of a volumetric hologram for its use in the construction of a radio-photonic device is shown. A variant of the optical scheme for recording a volume hologram with two counter propagating light beams with spherical wave fronts and the equation of this hologram are presented. The parameters that determine the structure of the striations of the volume hologram are listed. The analysis of the conditions for the reconstruction of the optical field exposed on the volume hologram is carried out. Conditions for optimal reconstruction of an optical field by a hologram and its destruction are considered. Diagrams of the angles of reconstruction of optical fields by a volumetric reflective hologram are presented. It is shown that when a reconstructing light beam with a spherical wave front is incident on a volume hologram, in order to provide the highest value of the energy of the reconstructed optical field, the reconstructing light beam must be narrowly directed, and its optical axis must coincide with one of the directions of optimal reconstruction. In this case, the reconstructing light beam should be located between the two directions of complete destruction of the optical field. It is concluded that a volume hologram possesses the properties of both spectral (to the wavelength of light) and spatial selectivity, which must be taken into account when using it in a radio-photonic device.

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THE PHYSICAL BASIS FOR THE USE OF REFLECTIVE VOLUME HOLOGRAMS IN RADIO PHOTONICS DEVICES

Электросвязь ◽

10.34832/elsv.2021.21.8.009 ◽

2021 ◽

Author(s):

А.Г. ПРЫГУНОВ

Keyword(s):

Mathematical Model ◽

Field Intensity ◽

Spectral Distribution ◽

Radio Signal ◽

Optical Field ◽

Volume Hologram ◽

Photonic Device ◽

Volume Holograms ◽

The Relationship ◽

Photonics Devices

Предлагается технология создания устройств радиофотоники на основе использования в них объемных отражательных голограмм. Построена математическая модель взаимосвязи параметров радиосигнала и пространственно-спектрального распределения интенсивности оптического поля в плоскости интерферограммы, формируемой световыми потоками, дифрагировавшими на объемной отражательной голограмме. Проведен анализ чувствительности параметров интерферограммы, формируемой в голографическом радиофотонном устройстве. The technology of creating radio-photonics devices based on the use of volume reflective holograms is proposed. A mathematical model of the relationship between the parameters of the radio signal and the spatial-spectral distribution of the optical field intensity in the plane of the interferogram formed by light fluxes diffracted on the volume hologram is constructed. The sensitivity of the parameters of the interferogram generated in a holographic radio photonic device is analyzed.

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Photopatterned azo poly(amide imide) layers as aligning substrates of holographic liquid crystal diffraction gratings for beam steering applications

Journal of Materials Chemistry C ◽

10.1039/c9tc04296b ◽

2020 ◽

Vol 8 (3) ◽

pp. 968-976 ◽

Cited By ~ 4

Author(s):

Anna Kozanecka-Szmigiel ◽

Katarzyna A. Rutkowska ◽

Mateusz Nieborek ◽

Michal Kwasny ◽

Miroslaw A. Karpierz ◽

...

Keyword(s):

Liquid Crystal ◽

Light Beam ◽

Beam Steering ◽

Diffraction Gratings ◽

Photonic Device

Custom synthesized “T-type” azobenzene-functionalized poly(amide imide) allows for effective fabrication of a tunable liquid crystal photonic device for light beam steering.

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Enhancement of sum squeezing of an optical field by mixing with a two-mode coherent light beam using a beam splitter

International Quantum Electronics Conference, 2005. ◽

10.1109/iqec.2005.1561073 ◽

2005 ◽

Author(s):

H. Prakash ◽

D.K. Mishra

Keyword(s):

Light Beam ◽

Beam Splitter ◽

Optical Field ◽

Coherent Light ◽

Coherent Light Beam

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Quantum Photonic Simulation of Spin-Magnetic Field Coupling and Atom-Optical Field Interaction

Applied Sciences ◽

10.3390/app10248850 ◽

2020 ◽

Vol 10 (24) ◽

pp. 8850

Author(s):

Jesús Liñares ◽

Xesús Prieto-Blanco ◽

Gabriel M. Carral ◽

María C. Nistal

Keyword(s):

Magnetic Field ◽

Optical Waveguides ◽

Physical Simulation ◽

Single Photon ◽

Optical Field ◽

Time Dependent ◽

Photonic Device ◽

Integrated Optical ◽

Interacting Systems ◽

Optical Gratings

In this work, we present the physical simulation of the dynamical and topological properties of atom-field quantum interacting systems by means of integrated quantum photonic devices. In particular, we simulate mechanical systems used, for example, for quantum processing and requiring a very complex technology such as a spin-1/2 particle interacting with an external classical time-dependent magnetic field and a two-level atom under the action of an external classical time-dependent electric (optical) field (light-matter interaction). The photonic device consists of integrated optical waveguides supporting two collinear or codirectional modes, which are coupled by integrated optical gratings. We show that the single-photon quantum description of the dynamics of this photonic device is a quantum physical simulation of both aforementioned interacting systems. The two-mode photonic device with a single-photon quantum state represents the quantum system, and the optical grating corresponds to an external field. Likewise, we also present the generation of Aharonov–Anandan geometric phases within this photonic device, which also appear in the simulated systems. On the other hand, this photonic simulator can be regarded as a basic brick for constructing more complex photonic simulators. We present a few examples where optical gratings interacting with several collinear and/or codirectional modes are used in order to illustrate the new possibilities for quantum simulation.

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On the cubic and cubic-quintic optical vortices equations

Journal of Applied Analysis ◽

10.1515/jaa-2016-0010 ◽

2016 ◽

Vol 22 (2) ◽

Cited By ~ 1

Author(s):

Carlo Greco

Keyword(s):

Electromagnetic Field ◽

Light Beam ◽

Optical Field ◽

The Self ◽

Optical Vortices ◽

Cubic Nonlinearity ◽

Various Boundary Conditions ◽

Self Focusing ◽

Ring Shaped Structure ◽

Point Type

AbstractAn optical vortex can appear when a light beam with nonzero angular momentum propagates in a suitable nonlinear medium. In some situations has been observed that the light intensity vanish at the center of the vortex (where the phase of the electromagnetic field is undefined), while the light beam assumes a ring-shaped structure. In this paper we consider two classical cases in which such kind of phenomena occur: the case of the self focusing cubic nonlinearity, and the case of competing quintic and cubic nonlinearity. In both cases we study the nonlinear Schrödinger equation of the optical field (with various boundary conditions) by means of min-max methods, and we prove the existence of saddle point type solutions, as well as minimum type solutions.

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Optical field-strength generalized polarization of non-stationary quantum states in waveguiding photonic devices

Journal of Modern Optics ◽

10.1080/09500340.2013.824125 ◽

2013 ◽

Vol 60 (12) ◽

pp. 941-955 ◽

Cited By ~ 4

Author(s):

David Barral ◽

Jesús Liñares ◽

María C. Nistal

Keyword(s):

Field Strength ◽

Photonic Devices ◽

Optical Field ◽

Quantum States ◽

Generalized Polarization ◽

Stationary Quantum

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Study of an Integration Platform Based on an Adiabatic Active-Layer Waveguide Connection for InP Photonic Device Integration Mirroring That of Heterogeneous Integration on Silicon

Photonics ◽

10.3390/photonics8100433 ◽

2021 ◽

Vol 8 (10) ◽

pp. 433

Author(s):

Changming Chen ◽

Junyu Li ◽

Chunxue Wang ◽

Yingyan Huang ◽

Daming Zhang ◽

...

Keyword(s):

Active Layer ◽

Photonic Devices ◽

Optical Beam ◽

Active Device ◽

Integration Platform ◽

Photonic Device ◽

Fiber Coupling ◽

Surface Grating ◽

Device Integration ◽

Layer Waveguide

In this work, a photonic device integration platform capable of integration of active-passive InP-based photonic devices without the use of material regrowth is introduced. The platform makes use of an adiabatic active-layer waveguide connection (ALWC) to move an optical beam between active and passive devices. The performance of this platform is analyzed using an example made up of four main sections: (1) a fiber coupling section for enabling vertical beam coupling from optical fiber into the photonic chip using a mode-matched surface grating with apodized duty cycles; (2) a transparent waveguide section for realizing passive photonic devices; (3) an adiabatic mode connection structure for moving the optical beam between passive and active device sections; and (4) an active device section for realizing active photonic devices. It is shown that the coupled surface grating, when added with a bottom gold reflector, can achieve a high chip-to-fiber coupling efficiency (CE) of 88.3% at 1550 nm. The adiabatic active-layer mode connection structure has an optical loss of lower than 1% (CE > 99%). The active device section can achieve an optical gain of 20 dB/mm with the use of only 3 quantum wells. The optimized structural parameters of the entire waveguide module are analyzed and discussed.

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