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142 results on '"Sukhoivanov, I. A."'

1. Photonic density of states maps for design of photonic crystal devices

Author

Sukhoivanov, I. A., Guryev, I. V., Lucio, J. A. Andrade, Mendez, E. Alvarado, Trejo-Duran, M., and Torres-Cisneros, M.

Subjects
Physics - Optics
Abstract

In this work, it has been investigated whether photonic density of states maps can be applied to the design of photonic crystal-based devices. For this reason, comparison between photonic density of states maps and transmittance maps was carried out. Results of comparison show full correspondence between these characteristics. Photonic density of states maps appear to be preferable for the design of photonic crystal devices, than photonic band gap maps presented earlier and than transmittance maps shown in the paper., Comment: 5 pages, 6 figures

Published
2010
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2. A New Demultiplexer Based Upon Two-Dimensional Photonic Crystals for OpticalIntegrated High-Density Circuits

Author

Guriev, I. V., Sukhoivanov, I. A., Shulika, A. V., and Kublik, A. V.

Subjects
Physics - Optics
Abstract

A new conception of the wavelength division multiplexing on the basis of the two-dimensional photonic crystal was developed. The photonic crystals band structures were investigated in details. The method for the synthesis of the two-channel wavelength division multiplexer on the basis of two dimensional photonic crystals was developed using this method the device was synthesized. The spectral characteristics of the device and its dynamic pulse pattern response were investigated., Comment: 9 pages, 4 figures

Published
2010

3. Spectral characteristics of side face excited microstructured fibers for photonic integrated circuits formations

Author

Guryev, I. V., Vazquez, D. J., Sukhoivanov, I. A., Luna, C. H., Estudillo-Ayala, J. M., Lucio, J. A. Andrade, Chavez, R. M., Trejo-Durán, M., Mendez, E. Alvarado, and Rojas-Laguna, R.

Subjects
Physics - Optics
Abstract

We propose a new method for mass production of the photonic crystal devices on the basis of widely-known and well-developed technology such as microstructured optical fibers. In this paper, we investigate the optical properties of side-excited microstructured optical fiber and discuss the conditions for utilization such a structure as a planar photonic crystal device, namely, the high-quality resonance filter., Comment: 7 pages, 7 figures

Published
2010
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4. Design of the photonic crystal demultiplexers for ultra-short optical pulses using the gap-maps analysis

Author

Sukhoivanov, I. A., Guryev, I. V., Shulika, O. V., Kublyk, A. V., Mashoshina, O. V., Mendez, E. Alvarado, and Andrade-Lucio, J. A.

Subjects
Physics - Optics
Abstract

In the work, the new method for the design of the wavelength division multiplexer on the basis of 2D photonic crystal integrated circuit for the ultra-short pulses channel separation is proposed and investigated. The method is based on the analysis of full photonic bandgap maps that allows defining the ultra-short pulse demultiplexer parameters selection. For the method approbation, there was synthesized the device in which the wideband filters are used for the channel separation. As it was expected, the device effectively separates 50 fs pulse channels with 1.31 and 1.55 microns wavelengths. The obtained spectral characteristics and pulse pattern responses validate the efficiency of the proposed method and the applicability of such devices to the integrated photonic information processing circuits.

Published
2007

11. Photonic band-gap maps for different two dimensionally periodic photonic crystal structures.

Author

Dyogtyev, A. V., Sukhoivanov, I. A., and De La Rue, R. M.

Subjects
*CRYSTALS, *PHOTONICS, *LATTICE dynamics, *CRYSTAL lattices, *GRAPHITE
Abstract

In this paper, the photonic band-gap (PBG) maps of fundamental photonic crystal (PhC) lattices are presented, and discussed. Two fundamental types of lattice: square and hexagonal (triangular, graphite or honeycomb and kagome) with circular, square, and hexagonal hole shapes are considered. Because they show the largest area gap map and because of the relative ease of fabrication of circular holes, it can be asserted that square and triangular lattices of circular holes offer the best choice of two dimensionally periodic photonic crystal (PhC) structure. Graphite and kagome lattices of circular holes in GaAs also show large area gap maps (and the largest gap map is for the second or third higher PBG region). So graphite and kagome lattices are also relevant for exploitation in PhC devices. At the scale required, fabrication process limitations are a significant problem for the realization of hole shapes other than circular. [ABSTRACT FROM AUTHOR]

Published
2010
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17. Analysis of integrated optics elements based on photonic crystals

Author

Guryev, I., Sukhoivanov, I. A., Alejandro-Izquierdo, S., Trejo-Durán, M., Estudillo-Ayala, J. M., Jose Amparo Andrade-Lucio, and Alvarado-Méndez, E.

Subjects
Photonic bandgap materials, integrated optics, Física, Astronomía y Matemáticas, Physics::Optics, devices
Abstract

We present the design of a demultiplexer based on photonic crystals (PC). The control of the refractive index, periodicity, geometry and size of the structure, are very important to light propagation in PC. The demultiplexer is intended to separate pulse channels with 1.3 and 1.55 ¹m wavelength into wide pass band wavelength division multiplexing (WDM) optical telecommunications systems. The dependence of the band gap width on the refractive index 4n between background and road lays is shown. The results of FDTD numerical simulation of wavelength channel splitting and the spectral analysis for the maximum efficacy of transfer energy are also presented

Published
2006

18. How to restrain Auger recombination predominance in the threshold of asymmetric bi-quantum-well lasers

Author

Sukhoivanov, I. A., Mashoshina, O. V., Kononenko, V. K., and Ushakov, D. V.

Subjects
ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика [ЭБ БГУ]
Abstract

Both radiative and nonradiative processes which occur in the active region of GaInAs–GaInAsP–InP asymmetric multiple quantum-well (AMQW) heterolasers with two quantum wells of different width (4 and 9 nm) are described. Several possible processes of non-radiative Auger recombination which affect the temperature sensitivity of the lasing threshold are analyzed and the temperature dependencies of the investigated processes are presented. For the above-mentioned AMQW heterostructure, it is shown that the influence of the Auger recombination processes on the temperature behaviour of the lasing threshold can be restrained by operation at temperatures lower than 340 K and the cavity losses which do not exceed 60 cm-1.

Published
2005

19. Auger Recombination Processes and Threshold Conditions in Asymmetric-Multiple-Quantum-Well Heterostructure Lasers

Author

Sukhoivanov, I. A., Mashoshina, O. V., Kononenko, V. K., and Ushakov, D. V.

Subjects
ЕСТЕСТВЕННЫЕ И ТОЧНЫЕ НАУКИ::Физика [ЭБ БГУ], Physics::Optics, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect
Abstract

Different possible processes of non-radiative Auger recombination which occur in the active region of quantum-well lasers are analyzed and the temperature dependence of the lasing threshold in the GaInAs-GaInAsP-InP bi-quantum-well heterolasers with different widths of the quantum wells (4 and 9 nm) is determined. Activated behavior of the Auger recombination is mentioned and respective effective parameters of the processes are calculated. For described asymmetric quantum-well heterostructure lasers, it is shown that the influence of the Auger recombination processes on the temperature behavior of the lasing threshold is not essential until the temperature of the active region is lower than 360 K and the cavity losses do not exceed 80 cm-1

Published
2004

27. Characterization of the bistable wideband optical filter on the basis of nonlinear 2D photonic crystal.

Author

Guryev, I. V., Sukhoivanov, I. A., Andrade Lucio, J. A., Manzano, O. Ibarra, Rodriguez, E. Vargaz, Gonzales, D. Claudio, Mata Chavez, R. I., and Gurieva, N. S.

Subjects
*LIGHT filters, *PHOTONIC crystals, *NONLINEAR systems, *ULTRA-short pulsed lasers, *WAVEGUIDES, *KERR electro-optical effect, *OPTICAL properties, *GAUSSIAN processes
Abstract

In our work, we investigated the wideband optical filter on the basis of nonlinear photonic crystal. The all-optical flip-flop using ultra-short pulses with duration lower than 200 f s is obtained in such filters. Here we pay special attention to the stability problem of the nonlinear element. To investigate this problem, the temporal response demonstrating the flip-flop have been computed within the certain range of the wavelengths as well as at different input power. [ABSTRACT FROM AUTHOR]

Published
2014
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28. Sensitivity of absorption spectra to surface segregation in InGaN/GaN quantum well structures.

Author

Klymenko, M. V., Shulika, O. V., and Sukhoivanov, I. A.

Subjects
ABSORPTION spectra, INDIUM gallium nitride, GALLIUM nitride, QUANTUM wells, SURFACE segregation, PIEZOELECTRICITY, POLARIZATION (Electricity), ELECTROSTATICS
Abstract

We investigate the influence of the indium surface segregation on absorption spectra in InGaN/GaN quantum well structures having different indium amount. Results of the mathematical modeling show that such influence is more pronounced in quantum well structures with high indium amounts. The origin of this effect is related to the interplay between the indium surface segregation and internal electrostatic fields. Our theoretical analysis is performed using semiconductor Bloch equations within the Hartree-Fock approximation including into consideration excitonic effects. Results of the global sensitivity analysis evidence that the influence of the indium surface segregation is less than one order of magnitude in comparison with the impact of the quantum-well width and indium molar fraction. Also, the influence of the indium surface segregation is not the same for each interface of the quantum well. [ABSTRACT FROM AUTHOR]

Published
2014
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29. The influence of gain nonlevearities on distortion in semiconductor lasers

Author

Lysak, V. V., Schatz, Richard, Shulika, A. V., Sukhoivanov, I. A., Kjebon, Olle, Lysak, V. V., Schatz, Richard, Shulika, A. V., Sukhoivanov, I. A., and Kjebon, Olle

Abstract

The modulation response and second harmonic distortion was analyzed for different gain models and compared with exact integral gain models. It was shown that if we modulate the laser around steady state with a signal, it would induce carrier and photon fluctuations. The second order distortion depended on the carrier and photon modulation response, the internal mixing process determined by the Hessian matrix creating a fictive injection signal and the carrier and photon modulation response at intermodulation frequency. It was found that the approximate model has a reasonable good agreement with an exact comprehensive gain model at all frequencies and pumping currents., QC 20141212

Published
2004
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32. Loop effect on Long-Period Fiber Gratings produced by electric arc

Author

Estudillo-Ayala, J.M., primary, Hernandez-Garcia, J.C., additional, Mata-Chavez, R.I., additional, Rojas-Laguna, R., additional, Trejo-Duran, M., additional, Vargas-Rodriguez, E., additional, Alvarado-Mendez, E., additional, Andrade-Lucio, J.A., additional, and Sukhoivanov, I. A., additional

Published
2011
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33. PC-Based systems for experiments in optical characterization of materials

Author

López-Mora, C C, primary, Trejo-Duran, M, additional, Alvarado-Méndez, E, additional, Rojas-Laguna, R, additional, Vargas-Rodríguez, E, additional, Estudillo-Ayala, J M, additional, Mata-Chavez, R, additional, Sukhoivanov, I, additional, García-Pérez, A, additional, Ibarra-Manzano, O G, additional, and Andrade-Lucio, J A, additional

Published
2011
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35. Influence of gain nonlinearity on the second order harmonic distortion in semiconductor lasers

Author

Lysak, V. V., Schatz, Richard, Shulika, A. V., Sukhoivanov, I. A., Lysak, V. V., Schatz, Richard, Shulika, A. V., and Sukhoivanov, I. A.

Abstract

The semiconductor laser is commonly used as a light source in fiber-optical telecommunication systems. In order to be able to send as much information as possible in a short time, it is important that the laser has a large modulation bandwidth, i.e., the turn-on and turn-off time should be as short as possible. In analogue fiber optic systems for transmission of radio or television signals, it is also important that the light from the laser increases linearly with driving current. Otherwise, the transmitted signal will become distorted. The modulation bandwidth and the modulation distortion are dependent both on the laser structure and the gain characteristics of the active material. In order to develop a correct laser model for calculation of, e.g., distortion one need an accurate model of the dependence of gain on carrier and photon density. We show that different gain models, fitted to give exactly the same modulation response can have significantly different distortion behavior., NR 20140805

Published
2003
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36. Induced refraction rings from cumarine materials

Author

Alvarado-Mendez, E., primary, Trejo-Duran, M., additional, Andrade-Lucio, J. A., additional, Estudillo-Ayala, J. M., additional, de la L. Sanchez-Estrada, M., additional, Vazquez-Guevara, M. A., additional, Alcaraz-Contreras, Y., additional, and Sukhoivanov, I., additional

Published
2010
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40. Nonlinear photonic crystal for optical power limiting

Author

Guryev, I. V., primary, Sukhoivanov, I. A., additional, Mendez, E. Alvarado, additional, Trejo-Duran, M., additional, Lucio, J. A. Andrade, additional, Rojas-Laguna, R., additional, Ibarra-Manzano, O., additional, and Ayala, J. Estudillo, additional

Published
2010
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