Kazimierz Jedrzejewski - Academia.edu (original) (raw)
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Papers by Kazimierz Jedrzejewski
Photonics Letters of Poland, 2010
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Optical Fibers and Their Applications VI, 1999
ABSTRACT
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SPIE Proceedings, 2007
ABSTRACT Double-clad photonic crystal fibre structure for laser applications is demonstrated. The... more ABSTRACT Double-clad photonic crystal fibre structure for laser applications is demonstrated. The double-clad structure of the fibre has the air-cladding with glass bridges of waists less than 500nm. The fibre was produced with phosphate glass and the core region was doped with ytterbium. The fibre was investigated and we found it to be monomode for generation wavelength of 1008nm. Whole fibre producing process including doped and undoped glass manufacturing and fibre drawing was held in Institute of Electronic Materials Technology.
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2014 16th International Conference on Transparent Optical Networks (ICTON), 2014
In this paper, we propose a simple monitoring system with the use of specially fabricated Fibre B... more In this paper, we propose a simple monitoring system with the use of specially fabricated Fibre Bragg Gratings (FBGs) and Optical Power Meter (OPM). The main idea bases on stable and easy to build system for environmental parameters measurements using in-line fused FBGs. Here are presented the results of temperature measurement monitoring system. The broader aim was to create sensor network, which would allow to detect changes of outer environmental parameters in easy and stable way for indicated locations. Proposed monitoring system was subject to wide range temperature variations.
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Applied Optics, 2016
In this paper, a theoretical analysis of recently developed tapered chirped fiber Bragg gratings ... more In this paper, a theoretical analysis of recently developed tapered chirped fiber Bragg gratings (TCFBG) written in co-directional and counter-directional configurations is presented. In particular, the effects of the synthesis of chirps resulting from both a fused taper profile and a linearly chirped fringe pattern of the induced refractive index changes within the fiber core are extensively examined. For this purpose, a numerical model based on the transfer matrix method (TMM) and the coupled mode theory (CMT) was developed for such a grating. The impact of TCFBG parameters, such as grating length and steepness of the taper transition, as well as the effect of the fringe pattern chirp rate on the spectral properties of the resulting gratings, are presented. Results show that, by using the appropriate design process, TCFBGs with reduced or enhanced resulting chirp, and thus with widely tailored spectral responses, can be easily achieved. In turn, it reveals a great potential application of such structures. The presented numerical approach provides an excellent tool for TCFBG design.
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Spie Proceedings Series, 1997
ABSTRACT
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ABSTRACT
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Proceedings of Spie the International Society For Optical Engineering, Sep 23, 2005
ABSTRACT In this paper we present results of research on fiber Bragg gratings (FBGs) fabricated o... more ABSTRACT In this paper we present results of research on fiber Bragg gratings (FBGs) fabricated on hydrogen-loaded fibers using scanning phase mask method. The influence of temperature on Bragg wavelength, reflectivity and FWHM for various exposure time and hydrogenation time was investigated. We also have carried out aging tests of fiber Bragg gratings using climatic chamber. Results of these tests can be useful for optimization of FBGs fabrication. We have estimated of fiber Bragg gratings usability as wavelength standards for calibration of fiber optics devices especially optical spectrum analyzers (OSA).
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ABSTRACT
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Journal of Alloys and Compounds, 2000
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ABSTRACT
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Elektronika Konstrukcje Technologie Zastosowania, 2001
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Conference on Lasers and Electro-Optics Europe - Technical Digest, 2005
A new fibre Mach-Zehnder type based on a single LPG written in a biconical fibre taper is present... more A new fibre Mach-Zehnder type based on a single LPG written in a biconical fibre taper is presented alongside a theoretical model supporting the observed effect
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Electronics Letters, 2005
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Electronics Letters, 1991
ABSTRACT
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Photonics Letters of Poland, 2010
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Optical Fibers and Their Applications VI, 1999
ABSTRACT
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SPIE Proceedings, 2007
ABSTRACT Double-clad photonic crystal fibre structure for laser applications is demonstrated. The... more ABSTRACT Double-clad photonic crystal fibre structure for laser applications is demonstrated. The double-clad structure of the fibre has the air-cladding with glass bridges of waists less than 500nm. The fibre was produced with phosphate glass and the core region was doped with ytterbium. The fibre was investigated and we found it to be monomode for generation wavelength of 1008nm. Whole fibre producing process including doped and undoped glass manufacturing and fibre drawing was held in Institute of Electronic Materials Technology.
Bookmarks Related papers MentionsView impact
2014 16th International Conference on Transparent Optical Networks (ICTON), 2014
In this paper, we propose a simple monitoring system with the use of specially fabricated Fibre B... more In this paper, we propose a simple monitoring system with the use of specially fabricated Fibre Bragg Gratings (FBGs) and Optical Power Meter (OPM). The main idea bases on stable and easy to build system for environmental parameters measurements using in-line fused FBGs. Here are presented the results of temperature measurement monitoring system. The broader aim was to create sensor network, which would allow to detect changes of outer environmental parameters in easy and stable way for indicated locations. Proposed monitoring system was subject to wide range temperature variations.
Bookmarks Related papers MentionsView impact
[
ABSTRACT
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Applied Optics, 2016
In this paper, a theoretical analysis of recently developed tapered chirped fiber Bragg gratings ... more In this paper, a theoretical analysis of recently developed tapered chirped fiber Bragg gratings (TCFBG) written in co-directional and counter-directional configurations is presented. In particular, the effects of the synthesis of chirps resulting from both a fused taper profile and a linearly chirped fringe pattern of the induced refractive index changes within the fiber core are extensively examined. For this purpose, a numerical model based on the transfer matrix method (TMM) and the coupled mode theory (CMT) was developed for such a grating. The impact of TCFBG parameters, such as grating length and steepness of the taper transition, as well as the effect of the fringe pattern chirp rate on the spectral properties of the resulting gratings, are presented. Results show that, by using the appropriate design process, TCFBGs with reduced or enhanced resulting chirp, and thus with widely tailored spectral responses, can be easily achieved. In turn, it reveals a great potential application of such structures. The presented numerical approach provides an excellent tool for TCFBG design.
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Spie Proceedings Series, 1997
ABSTRACT
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[
ABSTRACT
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Proceedings of Spie the International Society For Optical Engineering, Sep 23, 2005
ABSTRACT In this paper we present results of research on fiber Bragg gratings (FBGs) fabricated o... more ABSTRACT In this paper we present results of research on fiber Bragg gratings (FBGs) fabricated on hydrogen-loaded fibers using scanning phase mask method. The influence of temperature on Bragg wavelength, reflectivity and FWHM for various exposure time and hydrogenation time was investigated. We also have carried out aging tests of fiber Bragg gratings using climatic chamber. Results of these tests can be useful for optimization of FBGs fabrication. We have estimated of fiber Bragg gratings usability as wavelength standards for calibration of fiber optics devices especially optical spectrum analyzers (OSA).
Bookmarks Related papers MentionsView impact
ABSTRACT
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Bookmarks Related papers MentionsView impact
Journal of Alloys and Compounds, 2000
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ABSTRACT
Bookmarks Related papers MentionsView impact
Elektronika Konstrukcje Technologie Zastosowania, 2001
Bookmarks Related papers MentionsView impact
Conference on Lasers and Electro-Optics Europe - Technical Digest, 2005
A new fibre Mach-Zehnder type based on a single LPG written in a biconical fibre taper is present... more A new fibre Mach-Zehnder type based on a single LPG written in a biconical fibre taper is presented alongside a theoretical model supporting the observed effect
Bookmarks Related papers MentionsView impact
Electronics Letters, 2005
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Electronics Letters, 1991
ABSTRACT
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