Prof. Jaroslav Roztocil Profile

Prof. Jaroslav Roztocil

at Czech Technical Univ in Prague

SPIE Involvement:

Author

Publications (9)

Proceedings Article | 3 October 2024 Presentation + Paper

GÉANT plans towards fibre infrastructure for the distribution of time and frequency throughout Europe

Josef Vojtech, Guy Roberts, Tomas Novak, Michal Spacek, Elisabeth Andriantsarazo, Vladimir Smotlacha, Ondrej Havlis, Tomas Horvath, Rudolf Vohnout, Martin Slapak, Jaroslav Roztocil, Susanne Naegele-Jackson, Domenico Vicinanza, Harald Schnatz, Jochen Kronjaeger, Jacques-Olivier Gaudron, Krzysztof Turza

Proceedings Volume 13144, 131440N (2024) https://doi.org/10.1117/12.3027229

KEYWORDS: Quantum networks, Quantum frequencies, Optical coherence, Laser frequency, Quantum communications, Optical clocks, Metrology, Laser optics, Earthquakes

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Proceedings Article | 3 October 2024 Poster + Paper

Impact of transceiver selection on synchronization accuracy in White Rabbit Networks

Michal Špaček, Josef Vojtěch, Jaroslav Roztočil

Proceedings Volume 13144, 131440Z (2024) https://doi.org/10.1117/12.3029202

KEYWORDS: Transceivers, Dense wavelength division multiplexing, Optical fibers, Wavelength division multiplexing, Temperature metrology, Dispersion, Optical networks, Picosecond phenomena

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Proceedings Article | 20 October 2023 Poster + Paper

System for continuous evaluation of optical path asymmetry

Michal Špaček, Josef Vojtěch, Jaroslav Roztočil

Proceedings Volume 12686, 126860Q (2023) https://doi.org/10.1117/12.2678936

KEYWORDS: Optical transmission, Optical switching, Microelectromechanical systems, Calibration, Switches, Optical communications, Dense wavelength division multiplexing

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Proceedings Article | 20 October 2023 Presentation + Paper

Towards shared fiber dissemination infrastructure for precise time, coherent optical frequency, and entanglement transfers with sensing option

Josef Vojtech, Tomas Novak, Elisabeth Andriantsarazo, Vladimir Smotlacha, Ondrej Havlis, Rudolf Vohnout, Michal Spacek, Martin Slapak, Tomas Horvath, Lada Altmannova, Radek Velc, Petr Pospisil, Jan Kundrat, Martin Cizek, Jan Hrabina, Simon Rerucha, Lenka Pravdova, Josef Lazar, Ondrej Cip, Alexander Kuna, Jaroslav Roztocil

Proceedings Volume 12686, 1268604 (2023) https://doi.org/10.1117/12.2677256

KEYWORDS: Optical transmission, Optical coherence, Time metrology, Quantum entanglement, Quantum networks, Quantum key distribution, Quantum frequencies, Quantum coherence, Wavelength division multiplexing networks

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Proceedings Article | 6 June 2023 Presentation + Paper

National infrastructure for dissemination of precise time and ultra-stable optical frequency also aiming to connect quantum sources: CITAF

Josef Vojtech, Vladimir Smotlacha, Ondrej Havlis, Rudolf Vohnout, Michal Spacek, Tomas Novak, Elisabeth Andriantsarazo, Martin Slapak, Lada Altmannova, Radek Velc, Petr Pospisil, Jan Kundrat, Martin Cizek, Jan Hrabina, Simon Rerucha, Lenka Pravdova, Josef Lazar, Ondrej Cip, Alexander Kuna, Jaroslav Roztocil

Proceedings Volume 12570, 1257003 (2023) https://doi.org/10.1117/12.2665497

KEYWORDS: Optical transmission, Time metrology, Quantum frequencies, Clocks, Signal attenuation, Reflection, Quantum sources, Quantum beats

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Proceedings Article | 13 December 2022 Paper

National infrastructure for dissemination of precise time and interconnection of quantum sources of ultra-stable optical frequency CITAF

Josef Vojtech, Ondrej Havlis, Martin Slapak, Lada Altmannova, Vladimir Smotlacha, Petr Pospisil, Jan Kundrat, Rudolf Vohnout, Radek Velc, Elisabeth Andriantsarazo, Martin Cizek, Jan Hrabina, Simon Rerucha, Lenka Pravdova, Josef Lazar, Ondrej Cip, Alexander Kuna, Jaroslav Roztocil

Proceedings Volume 12502, 125020R (2022) https://doi.org/10.1117/12.2663805

KEYWORDS: Optical amplifiers, Time metrology, Quantum key distribution, Optical fibers, Connectors, Signal attenuation, Semiconductor optical amplifiers, Fiber amplifiers, Clocks

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Proceedings Article | 1 August 2021 Presentation + Paper

Large scale infrastructure for precise time and frequency bidirectional transmission

Josef Vojtech, Ondrej Havlis, Martin Slapak, Vladimir Smotlacha, Tomas Horvath, Lada Altmannova, Radek Velc, Jan Kundrat, Rudolf Vohnout, Sarbojeet Bhowmick, Michal Hazlinsky, Martin Cizek, Jan Hrabina, Lenka Pravdova, Ondrej Cip, Jaroslav Roztocil

Proceedings Volume 11830, 1183002 (2021) https://doi.org/10.1117/12.2592328

KEYWORDS: Networks, Optical amplifiers, Telecommunications, Radio optics, Clocks, Optical networks, Signal detection, Semiconductor optical amplifiers, Optical clocks, Time metrology

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Proceedings Article | 19 April 2021 Poster + Presentation + Paper

Towards Czech national research infrastructure for Clock Network Services

Josef Vojtech, Vladimir Smotlacha, Ondrej Havlis, Martin Slapak, Jan Kundrat, Sarbojeet Bhowmick, Rudolf Vohnout, Radek Velc, Lada Altmannova, Tomas Horvath, Martin Cizek, Jan Hrabina, Simon Rerucha, Lenka Pravdova, Josef Lazar, Ondrej Cip, Alexander Kuna, Jaroslav Roztocil

Proceedings Volume 11772, 117721H (2021) https://doi.org/10.1117/12.2589156

KEYWORDS: Clocks, Precision optics, Optical fibers, Metrology, Time metrology, Photonics, Optical networks, Electronics, Electrical engineering

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Proceedings Article | 20 August 2020 Presentation + Paper

Infrared dissemination of precise time and frequency over optical fibers in Europe

Josef Vojtech, Vladimir Smotlacha, Martin Slapak, Jan Kundrat, Rudolf Vohnout, Radek Velc, Ondrej Havlis, Martin Cizek, Jan Hrabina, Lenka Pravdova, Ondrej Cip, Jaroslav Roztocil

Proceedings Volume 11502, 115020N (2020) https://doi.org/10.1117/12.2568002

KEYWORDS: Optical fibers, Networks, Clocks, Time metrology, Metrology, Optical networks, Telecommunications, Optical clocks, Frequency metrology

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Showing 5 of 9 publications

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