Dr. Michal Lucki Profile

Dr. Michal Lucki

at Czech Technical Univ in Prague

SPIE Involvement:

Author

Publications (20)

Proceedings Article | 16 February 2017 Paper

New waveguide shape for low loss and high uniformity y-branch optical splitter

Catalina Burtscher, Dana Seyringer, Michal Lucki, Linda Kohler

Proceedings Volume 10106, 101061M (2017) https://doi.org/10.1117/12.2249758

KEYWORDS: Waveguides, Fiber to the x, Light scattering, Networks, Scattering, Neodymium, Computer simulations, Televisions, Optical fiber cables, Fiber optics

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Proceedings Article | 26 August 2015 Paper

The impacts of ageing effects due to radiation burden on optical fiber couplers

F. Perecar, O. Marcinka, L. Bednarek, M. Lucki, A. Liner, L. Hajek, M. Papes, J. Jaros, V. Vasinek

Proceedings Volume 9586, 95860E (2015) https://doi.org/10.1117/12.2187517

KEYWORDS: Optical fibers, Gamma radiation, Radiation effects, Optical components, Cladding, Optical networks, Nickel, Optical filters, Coating, Fiber lasers

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The paper discuss about accelerated ageing of optical fiber elements in their burdened with gamma radiation. In addition to the destruction of coating materials, gamma radiation has its effect on the internal structure of the optical fiber. It is necessary to specify the changes in the optical coupler and find out why these changes occur.

This article contains experimental measurement of the impact of gamma radiation Cobalt-60 on the optical couplers of various split performance ratio. The couplers were exposed to gradually increasing doses of 60Co. Measurements are focused on the overall distribution of the energy in the core and cladding various branches of SM optical fiber couplers. This article focuses on applied research and experimental development of resources for safety operation of optical networks since monitoring of ageing substantially contributes to its security. It addresses issues of accelerated ageing of optical fiber elements in their burdened with gamma radiation. How does radiation energy of gamma radiation influence optical network elements? This effect is explored just very little bit and is yet another unanswered question. In addition to the destruction of coating materials, gamma radiation has its effect on the internal structure of the optical fiber. It is necessary to specify the changes in the optical coupler and find out why these changes occur. This article contains experimental measurement of the impact of gamma radiation Cobalt-60 on the optical couplers of various split performance ratio. Optical passive components, couplers, were exposed to gradually increasing doses of ⁶⁰Co. Measurements are focused on the overall distribution of the energy of LP₀₁ mode in the core and cladding various branches of SM optical fiber couplers. Graphical and mathematical detect changes in the dissemination of energy coupler after single doses of gamma radiation are useful to understand the phenomenon of accelerated ageing elements of optical networks in environments with an increased incidence of radiation energy. Keywords: 2-D view, 3-D view, coupler, gamma radiation, Cobalt-60, ageing, energy

Proceedings Article | 21 May 2015 Paper

Laser ablation for membrane processing of AlGaN/GaN- and micro structured ferroelectric thin film MEMS and SiC pressure sensors for extreme conditions

J. Zehetner, G. Vanko, J. Dzuba, I. Ryger, T. Lalinsky, Manuel Benkler, Michal Lucki

Proceedings Volume 9517, 951721 (2015) https://doi.org/10.1117/12.2179041

KEYWORDS: Silicon carbide, Laser ablation, Sensors, Thin films, Sapphire, Microelectromechanical systems, Ceramics, Polarization, Reactive ion etching, Glasses

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Proceedings Article | 7 May 2015 Paper

Investigation of optical thin films printed on the surface of facets of photonic crystal fibers

M. Lucki, S. Kraus, R. Zeleny, Johann Zehetner, Dana Seyringer, J. Latal, F. Perecar

Proceedings Volume 9507, 95070A (2015) https://doi.org/10.1117/12.2182203

KEYWORDS: Thin films, Photonic crystal fibers, Laser ablation, Gold, Optical filters, Free space optics, Waveguides, Metals, Filtering (signal processing), Polarization

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Optical fibres are widely used in various applications as a medium for optical signals or optical transfer. This transport can be realized on long distance, compared to free space optics, which significantly extends reach of applications. Free space optics and fibre optics are combined in practice to yield the maximum performance of individual components forming a particular system. In such cases, light coupling from free space into fibres is required and it is frequently implemented with the use of lenses. An optical signal coupled into a fibre may also need certain modifications of spectral and spatial properties to allow its propagation down the fibre or reduce the amount of power carried in. The above requirement has been fulfilled by modifying surface of facets of photonic crystal fibres. By extrusion of a certain amount of host material from the surface, it is possible to obtain a structure resembling a thin film or an opaque layer for certain wavelengths. Several different structures of photonic crystal fibres and materials are considered to show influence of such thin-film on signal properties. This investigation is carried out in context of abilities of ablation of material from surfaces of photonic crystal fibres. Only certain shapes and geometrical arrangements can be considered. One of the goals is to specify, which of them are key for potential modification of spectral characteristics of photonic crystal fibres. The printed structures could potentially work like a thin-film ablation. Rigorous and versatile finite difference method has been employed to model propagation of light, its incidence onto a surface of the photonic crystal fibre, and subsequent propagation down the fibre. The simulations are carried on small pieces of photonic crystal fibres, with the length of tens of micrometres, due to well-known demands of the simulation technique on computational resources. Nevertheless, such a simplification is valid, since the structure is longitudinally uniform beyond the thin-film layer. However, this is aspect is not covered in the presented paper and it is our ongoing effort. Finally, the goal is to verify if the investigated structures can work as a slot waveguide.

Proceedings Article | 7 February 2015 Paper

Software design of segment optical transmitter for indoor free-space optical networks

Jan Latal, Jan Vitasek, Petr Koudelka, Petr Siska, Andrej Liner, Lukas Hajek, Ales Vanderka, Vladimir Vasinek, Michal Lucki

Proceedings Volume 9387, 93870Y (2015) https://doi.org/10.1117/12.2087118

KEYWORDS: Transmitters, Free space optics, Optical networks, Adaptive optics, Free space, Optical design, Eye, Telecommunications, Safety, Standards development

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SPIE Journal Paper | 27 October 2014

Dispersion limits in the design of small-mode-area photonic crystal fibers

Richard Zeleny, Michal Lucki

OE, Vol. 53, Issue 10, 105103, (October 2014) https://doi.org/10.1117/12.10.1117/1.OE.53.10.105103

KEYWORDS: Dispersion, Picosecond phenomena, Photonic crystal fibers, Structured optical fibers, Cladding, Waveguides, Wave propagation, Telecommunications, Silica, Phase matching

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Proceedings Article | 15 May 2014 Paper

Precise optical differential thermometer sensor based on interferometric measurement of thermal expansion coefficient

M. Lucki, L. Bohac, Richard Zeleny, M. Davidkova Antosova

Proceedings Volume 9141, 914124 (2014) https://doi.org/10.1117/12.2054346

KEYWORDS: Temperature metrology, Beam splitters, Michelson interferometers, Sensors, Interferometers, Mirrors, Copper, Signal detection, Interferometry, Dielectric mirrors

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Proceedings Article | 2 May 2014 Paper

Dispersion limits of the small mode area photonic crystal fibers designed as a broadband compensator

R. Zeleny, M. Lucki

Proceedings Volume 9128, 91280T (2014) https://doi.org/10.1117/12.2051934

KEYWORDS: Dispersion, Photonic crystals, Photonic crystal fibers, Cladding, Refractive index, Wave propagation, Silica, Doping, Waveguides, Phase matching

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Proceedings Article | 1 May 2014 Paper

Limits of advanced modulation formats for transition in fiber optic telecommunication systems to increase speeds from 10, 40, 100 Gbps to higher bit rates

M. Lucki, R. Agalliu, R. Zeleny

Proceedings Volume 9131, 913128 (2014) https://doi.org/10.1117/12.2054279

KEYWORDS: Phase shift keying, Modulation, Dense wavelength division multiplexing, Signal detection, Polarization, Receivers, Terahertz radiation, Binary data, Multiplexing, Transmitters

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Proceedings Article | 3 May 2013 Paper

Broadband submicron flattened dispersion compensating fiber with asymmetrical fluoride doped core

M. Lucki, R. Zeleny

Proceedings Volume 8775, 87750M (2013) https://doi.org/10.1117/12.2017554

KEYWORDS: Dispersion, Silica, Refractive index, Cladding, Signal attenuation, Wave propagation, Telecommunications, Photonic crystal fibers, Glasses, Radio propagation

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Proceedings Article | 3 May 2013 Paper

Broadband dispersion decreasing photonic crystal fiber for compression of optical pulses

R. Zeleny, M. Lucki

Proceedings Volume 8775, 87750Y (2013) https://doi.org/10.1117/12.2019298

KEYWORDS: Dispersion, Solitons, Photonic crystal fibers, Wave propagation, Waveguides, Picosecond phenomena, Refractive index, Silica, Scanning probe microscopy, Raman spectroscopy

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SPIE Journal Paper | 8 April 2013

Nearly zero dispersion-flattened photonic crystal fiber with fluorine-doped three-fold symmetry core

Richard Zeleny, Michal Lucki

OE, Vol. 52, Issue 04, 045003, (April 2013) https://doi.org/10.1117/12.10.1117/1.OE.52.4.045003

KEYWORDS: Dispersion, Photonic crystal fibers, Refractive index, Waveguides, Silica, Doping, Picosecond phenomena, Cladding, Fluorine, Optical fibers

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Proceedings Article | 26 April 2012 Paper

An improved non-linear nearly-zero dispersion flattened photonic crystal fiber with the threefold symmetry core

R. Zeleny, M. Lucki

Proceedings Volume 8426, 84260R (2012) https://doi.org/10.1117/12.920064

KEYWORDS: Dispersion, Picosecond phenomena, Photonic crystal fibers, Waveguides, Silica, Doping, Transmittance, Refractive index, Tolerancing, Telecommunications

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Proceedings Article | 11 October 2011 Paper

Broadband dispersion compensating photonic crystal fiber

Michal Lucki, Richard Zeleny

Proceedings Volume 8306, 83060Z (2011) https://doi.org/10.1117/12.910720

KEYWORDS: Dispersion, Photonic crystal fibers, Picosecond phenomena, Doping, Refractive index, Telecommunications, Structured optical fibers, Wavelength division multiplexing, Signal attenuation, L band

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Proceedings Article | 11 May 2011 Paper

Photonic crystal fiber with flattened dispersion

M. Lucki

Proceedings Volume 8073, 80732P (2011) https://doi.org/10.1117/12.886807

KEYWORDS: Dispersion, Photonic crystal fibers, Telecommunications, Refractive index, Waveguides, Silica, Structured optical fibers, Solids, L band, Computer simulations

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Proceedings Article | 18 November 2008 Paper

Design of photonic crystal fibers with low bending losses

M. Lucki, L. Bohac, J. Vodrazka

Proceedings Volume 7138, 713810 (2008) https://doi.org/10.1117/12.818004

KEYWORDS: Cladding, Dispersion, Photonic crystal fibers, Optical design, Optical switching, Refractive index, Electrical engineering, Optical components, Optical filters, Photonic crystals

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Proceedings Article | 22 April 2008 Paper

A short overview of the most actual problems in the area of fiber bending and chromatic dispersion in photonic crystal fibers

M. Lucki, L. Bohac, J. Vodrazka

Proceedings Volume 6990, 69900X (2008) https://doi.org/10.1117/12.780849

KEYWORDS: Dispersion, Cladding, Photonic crystal fibers, Tolerancing, Light wave propagation, Nonlinear optics, Critical dimension metrology, Refractive index, Micro optical fluidics, Telecommunications

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Proceedings Article | 17 May 2007 Paper

Chosen aspects of negative dispersion generation in index guiding photonic crystal fibers

M. Lucki, L. Bohac, J. Burcik

Proceedings Volume 6588, 65880W (2007) https://doi.org/10.1117/12.722603

KEYWORDS: Dispersion, Cladding, Photonic crystal fibers, Wave propagation, Tolerancing, Telecommunications, Doping, Distortion, Signal attenuation, Nonlinear optics

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Proceedings Article | 18 April 2006 Paper

Flexible control of dispersion in index guiding photonic crystal fibers governed by geometrical parameters

M. Lucki, L. Bohac

Proceedings Volume 6182, 61822F (2006) https://doi.org/10.1117/12.660998

KEYWORDS: Dispersion, Refractive index, Waveguides, Photonic crystal fibers, Cladding, Silica, Structured optical fibers, Telecommunications, Supercontinuum generation, Wave propagation

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Proceedings Article | 12 October 2005 Paper

Band gap structure as the Photonic Crystal Fiber guidance mechanism

Michal Lucki, L. Bohac

Proceedings Volume 5950, 59501F (2005) https://doi.org/10.1117/12.622595

KEYWORDS: Cladding, Photonic crystal fibers, Refractive index, Silica, Light wave propagation, Photonic crystals, Wave propagation, Waveguides, Ultraviolet radiation, Infrared radiation

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Showing 5 of 20 publications

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