Dr. Tomasz Osuch Profile

Dr. Tomasz Osuch

at Warsaw Univ of Technology

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Author

Publications (22)

Proceedings Article | 19 May 2019 Open Access

Nanostructured core optical fibres (Conference Presentation) (Withdrawal Notice)

Ryszard Buczynski, Alicja Anuszkiewicz, Marcin Franczyk, Adam Filipkowski, Tomasz Osuch, Dariusz Pysz, Tomasz Stefaniuk, Grzegorz Stepniewski, Damian Michalik, Hue Thi Nguyen, Mariusz Klimczak, Rafal Kasztelanic

Proceedings Volume 11029, 1102906 (2019) https://doi.org/10.1117/12.2524881

KEYWORDS: Nanostructuring, Optical fibers, Specialty optical fibers, Optoelectronics

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Proceedings Article | 27 February 2019 Paper

Ytterbium-doped nanostructured core silica fiber with built-in Bragg grating for laser applications

Marcin Franczyk, Dariusz Pysz, Konrad Markowski, Jolanta Lisowska, Alicja Anuszkiewicz, Rafał Kasztelanic, Tomasz Stefaniuk, Adam Filipkowski, Kazimierz Jędrzejewski, Tomasz Osuch, Ryszard Buczynski

Proceedings Volume 10914, 109140L (2019) https://doi.org/10.1117/12.2509913

KEYWORDS: Bragg gratings, Glasses, Nanostructuring, Germanium, Refractive index, Ytterbium, Silica, Fiber lasers, Optical fibers, Laser resonators

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Proceedings Article | 1 October 2018 Paper

Application of fiber Bragg gratings for stress analysis of high mobility vehicle frame

Andrzej Manujło, Paweł Gotowcki, Przemysław Simiński, Marek Szudrowicz, Krzysztof Kosiuczenko, Tomasz Osuch

Proceedings Volume 10808, 1080818 (2018) https://doi.org/10.1117/12.2501669

KEYWORDS: Fiber Bragg gratings, Sensors, Finite element methods, Stars, Stress analysis, Temperature metrology, Fiber optics sensors, Chemical elements, Roads, Optical fibers

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Proceedings Article | 23 May 2018 Presentation

Noninvasive optoelectronic system for monitoring of the heart and respiratory rate of the patient exposed to MRI scanning (Conference Presentation)

Stanisław Stopiński, Anna Jusza, Krzysztof Anders, Andrzej Kaźmierczak, Konrad Markowski, Tomasz Osuch, Mariusz Krej, Lukasz Dziuda, Paweł Szczepański, Ryszard Piramidowicz

Proceedings Volume 10680, 106800T (2018) https://doi.org/10.1117/12.2307594

KEYWORDS: Magnetic resonance imaging, Optoelectronics, Heart, Fiber Bragg gratings, Magnetism, Sensors, Photonic integrated circuits, Diagnostics, Medicine, Optical sensing

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The magnetic resonance imaging (MRI) technique is a powerful diagnostic tool which is nowadays commonly used in many fields of medicine. In some cases, especially of the patients of intensive care units, it is highly recommended or even necessary to provide continuous monitoring of basic physiologic parameters, mainly the heart rate and the respiratory rate, during the MRI scan procedure. The presence of a strong magnetic field within the MRI chamber requires application of non-standard devices and solutions. The monitoring system needs to be immune to the strong magnetic field and simultaneously cannot negatively influence on the results of the scan. Therefore, application of optical sensing technologies could be potentially advantageous to fulfil these requirements. In this work we propose a novel optoelectronic measurement system, dedicated to monitoring of the patient during an MRI scan, immune to strong magnetic field and compatible with the MRI apparatus. Fiber Bragg gratings (FBGs) are used as the sensing elements – the strain induced by the patient’s respiration and cardiac activity cause a change of the Bragg wavelength. These changes can be accurately measured and monitored in the time domain. The respiratory and heart rate can be extracted by further processing of the measured signal by dedicated software. The gratings are organized in a network to maximize the effective sensing area. Each of the FBGs has a different Bragg wavelength so that they can be connected in series. The information from the sensors is read out using an interrogator based on an application specific photonic integrated circuit (ASPIC), designed and fabricated in an InP-based generic integration technology. The interrogator comprises a 36-channel arrayed waveguide grating wavelength demultiplexer, which outputs are connected to PIN photodiodes. Such a photonic circuit acts as a spectrometer and allows to reconstruct the reflection spectrum of many gratings simultaneously. An external superluminescent LED is used as the light source, however in the target configuration the source could be monolithically integrated with the interrogator. The Bragg gratings, the interrogator and the SLED are connected with each other using an optical circulator. Initial tests of the monitoring system have been performed using a single fiber Bragg grating as the strain sensor and a commercially available optoelectronic interrogator. The fiber with an inscribed FBG was mounted using an epoxy glue on a PMMA board and deployed under the patient. Two signals can be distinguished out of the measured waves. The first one, with strong and slowly-varying peaks, reflects the respiration of the patient. The second signal, characterized by low-intensity and fast-varying peaks is a result of the cardiac activity. No influence of the magnetic field of the MRI instrument on the sensing system has been observed. The first results have confirmed both the correctness of the approach and the applicability of the system to monitoring the patient’s physical condition during MRI diagnosis. This work was supported by the National Centre for Research and Development, project OPTO-SPARE, grant agreement PBS3/B9/41/2015.

Proceedings Article | 7 August 2017 Paper

Design and fabrication principles of chirped tapered fiber-Bragg-grating-based Fabry-Perot cavity

Konrad Markowski, Kazimierz Jędrzejewski, Tomasz Osuch

Proceedings Volume 10445, 1044518 (2017) https://doi.org/10.1117/12.2281104

KEYWORDS: Fiber Bragg gratings, Fabry–Perot interferometers, Optical fibers, Mirrors, Tapered optical fibers, Refractive index, Resonators, Reflectivity, Manufacturing, Reflectors

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Proceedings Article | 7 August 2017 Paper

Temperature fiber Bragg grating based sensor for respiration monitoring

Andrzej Manujło, Tomasz Osuch

Proceedings Volume 10445, 104451A (2017) https://doi.org/10.1117/12.2281106

KEYWORDS: Fiber Bragg gratings, Sensors, Fiber optics sensors, Temperature sensors, Vital signs, Temperature metrology, Functional magnetic resonance imaging, Fiber optics, Electromagnetism, Heart, Sensing systems

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Proceedings Article | 10 February 2017 Paper

Recent advances in tapered fiber Bragg grating technology and applications

Tomasz Osuch

Proceedings Volume 10325, 103250K (2017) https://doi.org/10.1117/12.2271162

KEYWORDS: Fiber Bragg gratings, Technologies and applications, Fiber optics sensors

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Proceedings Article | 28 September 2016 Paper

Optimization of group delay response of (apodized) tapered fiber Bragg grating by shaping taper transition and apodization window

Konrad Markowski, Kazimierz Jędrzejewski, Tomasz Osuch

Proceedings Volume 10031, 100311G (2016) https://doi.org/10.1117/12.2249380

KEYWORDS: Fiber Bragg gratings, Apodization, Algorithms, Refractive index, Optimization (mathematics), Process modeling, Dispersion, Manufacturing, Ultraviolet radiation, Waveguides

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Proceedings Article | 28 September 2016 Paper

A dual-parameter tilted fiber Bragg grating-based sensor for liquid level and temperature monitoring

Tomasz Osuch, Tomasz Jurek, Konrad Markowski, Kazimierz Jędrzejewski

Proceedings Volume 10031, 100311I (2016) https://doi.org/10.1117/12.2249382

KEYWORDS: Fiber Bragg gratings, Fiber optics sensors, Liquids, Temperature metrology, Sensors, Optical testing, Cladding, Refractive index, Optical fibers, Spectrum analysis

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Proceedings Article | 28 September 2016 Paper

Custom FBGs inscription using modified phase mask method with precise micro- and nano-positioning

Konrad Markowski, Arkadiusz Perka, Kazimierz Jędrzejewski, Tomasz Osuch

Proceedings Volume 10031, 100311H (2016) https://doi.org/10.1117/12.2249381

KEYWORDS: Fiber Bragg gratings, Apodization, Refractive index, Reflectivity, Phase shift keying, Fabry–Perot interferometers, Fabrication, Modulation, Diffraction gratings, Fringe analysis

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Proceedings Article | 25 November 2014 Paper

Impact of fiber ring laser configuration on detection capabilities in FBG based sensor systems

Tomasz Osuch, Tomasz Kossek, Konrad Markowski

Proceedings Volume 9290, 92900Y (2014) https://doi.org/10.1117/12.2076077

KEYWORDS: Fiber Bragg gratings, Fiber lasers, Optical amplifiers, Sensors, Mode locking, Sensing systems, Ions, Neodymium, Laser applications

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Proceedings Article | 12 May 2014 Paper

Accelerated-aging tests of fiber Bragg gratings written in hydrogen loaded tapered optical fibers

Tomasz Osuch, Dorota Herman, Konrad Markowski, Kazimierz Jędrzejewski

Proceedings Volume 9228, 922808 (2014) https://doi.org/10.1117/12.2066856

KEYWORDS: Fiber Bragg gratings, Hydrogen, Optical fibers, Annealing, Tapered optical fibers, Reflectivity, Fabrication, Temperature metrology, Telecommunications, Reliability

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Proceedings Article | 12 May 2014 Paper

Numerical and experimental studies of dispersion characteristics of tapered fiber Bragg gratings under the influence of axial strain

Konrad Markowski, Tomasz Osuch

Proceedings Volume 9228, 92280T (2014) https://doi.org/10.1117/12.2067072

KEYWORDS: Fiber Bragg gratings, Optical fibers, Dispersion, Refractive index, Systems modeling, Tapered optical fibers, Fringe analysis, Telecommunications, Fiber optic components, Microwave photonics

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Proceedings Article | 25 October 2013 Paper

Spectral transmission characteristics of weakly tilted and tilted chirped fiber gratings: comparative studies

Tomasz Osuch, Tomasz Jurek, Kazimierz Jędrzejewski

Proceedings Volume 8903, 89030W (2013) https://doi.org/10.1117/12.2035446

KEYWORDS: Fiber Bragg gratings, Cladding, Refractive index, Optical fibers, Ultraviolet radiation, Sensors, Optical amplifiers, Telecommunications, Structured optical fibers, Fiber optics sensors

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Proceedings Article | 25 October 2013 Paper

Optical microphone based on Sagnac interferometer with polarization maintaining optical fibers

Konrad Markowski, Jarosław Turkiewicz, Tomasz Osuch

Proceedings Volume 8903, 89030Q (2013) https://doi.org/10.1117/12.2035415

KEYWORDS: Sagnac interferometers, Polarization maintaining fibers, Acoustics, Signal detection, Refractive index, Photodetectors, Mathematics, Optical fibers, Polarization, Modulation

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Proceedings Article | 25 October 2013 Paper

Validation of the automated system for simultaneous spectral transmission/reflection and dispersion characteristics measurement of fiber Bragg gratings and optical fibers

Dorota Herman, Tomasz Osuch, Tomasz Kossek

Proceedings Volume 8903, 89030S (2013) https://doi.org/10.1117/12.2035426

KEYWORDS: Fiber Bragg gratings, Optical fibers, Phase shifts, Dispersion, Modulation, Phase measurement, Ions, Reflectivity, Laser sources, Neodymium

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Proceedings Article | 25 October 2013 Paper

Modeling of fiber Bragg gratings written in tapered optical fibers

Konrad Markowski, Tomasz Osuch

Proceedings Volume 8903, 89030U (2013) https://doi.org/10.1117/12.2035432

KEYWORDS: Fiber Bragg gratings, Wave propagation, Tapered optical fibers, Refractive index, Radio propagation, Optical fibers, Electromagnetic radiation, Structured optical fibers, Systems modeling, Telecommunications

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Proceedings Article | 20 November 2008 Paper

Apodised linear axicons

A. Kowalik, Z. Jaroszewicz, A. Kolodziejczyk, T. Osuch

Proceedings Volume 7141, 714125 (2008) https://doi.org/10.1117/12.822424

KEYWORDS: Axicons, Chemical elements, Bessel beams, Glasses, Binary data, Diffraction, Optical filters, Diffraction gratings, Photoresist materials, Manufacturing

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Proceedings Article | 25 April 2006 Paper

Width of the apodization area in the case of diffractive optical elements with variable efficiency

Tomasz Osuch, Zbigniew Jaroszewicz, Andrzej Kołodziejczyk

Proceedings Volume 6187, 61871G (2006) https://doi.org/10.1117/12.667280

KEYWORDS: Apodization, Diffraction, Photomasks, Ultraviolet radiation, Fiber Bragg gratings, Diffractive optical elements, Phase shift keying, Computer simulations, Optical fibers, Diffraction gratings

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Proceedings Article | 23 September 2005 Paper

Thermal and aging tests of fiber Bragg gratings as wavelength standards

T. Osuch, T. Kossek, K. Jedrzejewski, L. Lewandowski

Proceedings Volume 5951, 59510H (2005) https://doi.org/10.1117/12.622811

KEYWORDS: Fiber Bragg gratings, Reflectivity, Temperature metrology, Packaging, Annealing, Calibration, Spectrum analysis, Climatology, Optical fabrication, Hydrogen

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Proceedings Article | 23 February 2005 Paper

System for modification of exposure time in fiber Bragg gratings fabrication with using scanning phase mask method

Tomasz Osuch, Pawel Gasior, Lech Lewandowski

Proceedings Volume 5775, (2005) https://doi.org/10.1117/12.610642

KEYWORDS: Fiber Bragg gratings, Modulation, Apodization, Phase shift keying, Signal attenuation, Refractive index, Process control, Diffraction gratings, Telecommunications, Fiber lasers

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Proceedings Article | 23 February 2005 Paper

Inscription of fiber Bragg gratings with wavelength flexibility using phase mask interferometer in Talbot's configuration

Pawel Gasior, Tomasz Osuch, Lech Lewandowski

Proceedings Volume 5775, (2005) https://doi.org/10.1117/12.610639

KEYWORDS: Fiber Bragg gratings, Interferometers, Phase interferometry, Mirrors, Fiber lasers, Diffraction gratings, Diffraction, Telecommunications, Modulation, Refractive index

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Showing 5 of 22 publications

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