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113 results on '"Seyringer, Dana"'

1. CMOS optoelectronic spectrometer based on photonic integrated circuit for in vivo 3D optical coherence tomography

Author

Agneter, Anja, Muellner, Paul, Nguyen, Quang, Seyringer, Dana, Rank, Elisabet A., Vlaskovic, Marko, Kraft, Jochen, Sagmeister, Martin, Nevlacsil, Stefan, Eggeling, Moritz, Maese-Novo, Alejandro, Morozov, Yevhenii, Schmitner, Nicole, Kimmel, Robin A., Bodenstorfer, Ernst, Cipriano, Pietro, Zimmermann, Horst, Leitgeb, Rainer A., Hainberger, Rainer, and Drexler, Wolfgang

Published
2024
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2. 16-channel, 100 GHz colorless AWG for new generation optical networks.

Author

Seyringer, Dana, Dohnal, Fadi, Latal, Jan, Siska, Petr, Chovan, Jozef, Uherek, František, Hejduk, Stanislav, Stipal, Jiri, and Trubak, Kamil

Subjects
*COMMERCIAL art, *PHOTONICS, *WAVELENGTHS
Abstract

We present design and optimization of a 16-channel, 100 GHz colorless arrayed waveguide gratings multiplexer/demultiplexer for new generation networks based on a hybrid configuration. The AWG was designed for a central wavelength of 1.55 µm and simulated in the wavelength range between 1.5 µm and 1.6 µm. The AWG was designed using the specially developed standalone tool "AWG-Parameters". The AWG structure was created and simulated using Apollo Photonics' commercial design tool. The structure was further optimized, and all AWG designs were evaluated. Finally, the calculated transmission parameters were compared with each other. [ABSTRACT FROM AUTHOR]

Published
2024
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5. Laser-Induced Periodic Surface Structures and Their Application for Gas Sensing.

Author

Zehetner, Johann, Hotovy, Ivan, Rehacek, Vlastimil, Kostic, Ivan, Mikolasek, Miroslav, Seyringer, Dana, and Dohnal, Fadi

Subjects
GAS detectors, LASER ablation, SURFACE structure, SURFACE morphology, SOLAR cells
Abstract

Semiconducting metal oxides are widely used for solar cells, photo-catalysis, bio-active materials and gas sensors. Besides the material properties of the semiconductor being used, the specific surface topology of the sensors determines device performance. This study presents different approaches for increasing the sensing area of semiconducting metal oxide gas sensors. Micro- and nanopatterned laser-induced periodic surface structures (LIPSSs) are generated on silicon, Si/SiO2 and glass substrates. The surface morphologies of the fabricated samples are examined by FE SEM. We selected the nanostructuring and characterization of nanostructured source Ni/Au and Ti/Au films prepared on glass using laser ablation as the most suitable of the investigated approaches. Surface structures produced on glass by backside ablation provide 100 nm features with a high surface area; they are also transparent and have high resistivity. The value of the hydrogen sensitivity in the range concentrations from 100 to 500 ppm was recorded using transmittance measurements to be twice as great for the nanostructured target TiO2/Au as compared to the NiO/Au. It was found that such transparent materials present additional possibilities for producing optical gas sensors. [ABSTRACT FROM AUTHOR]

Published
2024
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9. Preparation of laser induced periodic surface structures for gas sensing thin films and gas sensing verification of a NiO based sensor structure.

Author

Hotovy, Ivan, Zehetner, Johann, Rehacek, Vlastimil, Mikolasek, Miroslav, Kostic, Ivan, Serecunova, Stanislava, Seyringer, Dana, and Dohnal, Fadi

Subjects
SURFACE structure, THIN films, GAS detectors, SURFACE morphology, LASERS, METALLIC oxides, NANOSILICON
Abstract

This study presents different approaches to increase the sensing area of NiO based semiconducting metal oxide gas sensors. Micro- and nanopatterned laser induced periodic surface structures (LIPSS) are generated on silicon and Si/SiO2 substrates. The surface morphologies of the fabricated samples are examined by FE SEM. We select the silicon samples with an intermediate Si3N4 layer due to its superior isolation quality over the thermal oxide for evaluating the hydrogen and acetone sensitivity of a NiO based test sensor. [ABSTRACT FROM AUTHOR]

Published
2024
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13. Optoelectronic system based on photonic integrated circuits to miniaturize spectral domain OCT (Conference Presentation)

Author

Agneter, Anja, primary, Rank, Elisabet A., additional, Vlašković, Marko, additional, Nevlacsil, Stefan, additional, Cipriano, Pietro, additional, Nguyen, Quang, additional, Santosa, Ryan, additional, Maese Novo, Alejandro, additional, Seyringer, Dana, additional, Eggeling, Moritz, additional, Sagmeister, Martin, additional, Bodenstorfer, Ernst, additional, Ginner, Laurin, additional, Kraft, Jochen, additional, Meinhardt, Gerald, additional, Zimmermann, Horst, additional, Hainberger, Rainer, additional, Müllner, Paul, additional, Leitgeb, Rainer A., additional, and Drexler, Wolfgang, additional

Published
2023
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25. Design and simulation of polymer based 1x4 multimode interference splitter.

Author

Serecunova, Stanislava, Seyringer, Dana, Seyringer, Heinz, Uherek, Frantisek, Mizera, Tomas, and Pudis, Dusan

Subjects
*POLYMER structure, *SOFTWARE development tools, *WAVEGUIDE filters, *POLYMERS, *DESIGN software, *SOFTWARE architecture
Abstract

This paper presents design, simulation, and optimization of 1x4 multimode interference (MMI) splitter based on polymer waveguide structure. The splitter was designed as a planar structure for an operating wavelength 1.55 µm. The waveguide core size was set to 2x2 µm2. The splitter was designed in two software tools: Optiwave and RSoft. The obtained simulation results are discussed and compared. The objective of this paper is to create study for design of MMI splitter in 3D arrangement, which will be fabricated by 3D lithography. [ABSTRACT FROM AUTHOR]

Published
2021
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26. 3D Polymer Based 1x4 Beam Splitter

Author

Gaso, Peter, primary, Pudis, Dusan, additional, Seyringer, Dana, additional, Kuzma, Anton, additional, Gajdosova, Lenka, additional, Mizera, Tomas, additional, and Goraus, Matej, additional

Published
2021
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29. CMOS-compatible silicon nitride waveguide photonic building blocks and their application for optical coherence tomography and other sensing applications

Author

Hainberger, Rainer, primary, Muellner, Paul, additional, Eggeling, Moritz, additional, Maese-Novo, Alejandro, additional, Nevlacsil, Stefan, additional, Schotter, Jörg, additional, Vogelbacher, Florian, additional, Kraft, Jochen, additional, Sagmeister, Martin, additional, Zhou, Xue, additional, Huang, Jinhua, additional, Li, Mingzhu, additional, Jiang, Ke-Jian, additional, Song, Yanlin, additional, Seyringer, Dana, additional, Rank, Elisabet, additional, and Drexler, Wolfgang, additional

Published
2020
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33. Spectral domain and swept source optical coherence tomography on a photonic integrated circuit at 840nm for ophthalmic application

Author

Rank, Elisabet A., primary, Nevlacsil, Stefan, additional, Muellner, Paul, additional, Hainberger, Rainer, additional, Maese-Novo, Alejandro, additional, Duelk, Marcus, additional, Gloor, Stefan, additional, Voelker, Matthias, additional, Verwaal, Nanko, additional, Meinhardt, Gerald, additional, Sagmeister, Martin, additional, Kraft, Jochen, additional, Morrissey, Padraic, additional, Jezzini, Moises, additional, Quan, Zhiheng, additional, O'Brien, Peter, additional, Richter, Stefan, additional, Kempe, Michael, additional, Seyringer, Dana, additional, and Drexler, Wolfgang, additional

Published
2019
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36. Design and optimization of 1 × 2N Y-branch optical splitters for telecommunication applications.

Author

Serečunová, Stanislava, Seyringer, Dana, Seyringer, Heinz, and Uherek, František

Subjects
*TELECOMMUNICATION, *INSERTION loss (Telecommunication), *LIGHT propagation, *DESIGN, *WAVEGUIDES
Abstract

This paper presents the design and optimization of 1 × 2N Y-branch optical splitters for telecom applications. A waveguide channel profile, used in the splitter design, is based on a standard silica-on-silicon material platform except for the lengths of the used Y-branches, design parameters such as port pitch between the waveguides and simulation parameters for all splitters were considered fixed. For every Y-branch splitter, insertion loss, non-uniformity, and background crosstalk are calculated. According to the minimum insertion loss and minimum non-uniformity, the optimum length for each Y-branch is determined. Finally, the individual Y-branches are cascade joined to design various Y-branch optical splitters, from 1 × 2 to 1 × 64. [ABSTRACT FROM AUTHOR]

Published
2020
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38. Arrayed Waveguide Gratings

Author

Seyringer, Dana and Seyringer, Dana

Subjects
Wavelength division multiplexing, Wave guides, Diffraction gratings
Abstract

This Spotlight provides an overview of the life cycle of arrayed waveguide gratings (AWGs), from design and simulation to evaluation and technological verification. The book describes the AWG design procedure by applying a new software tool. It discusses the appropriateness of different commercially available photonics tools, and their advantages and disadvantages. To solve the problems posed by evaluation, 19 transmission parameters are defined. The book demonstrates that there is very good agreement between designed and simulated/measured transmission parameters. Finally, the book describes AWG designs with excellent optical demultiplexing properties.

Published
2016

46. Design and optimization of 1 × 2NY-branch optical splitters for telecommunication applications

Author

Serečunová, Stanislava, Seyringer, Dana, Seyringer, Heinz, and Uherek, František

Abstract

This paper presents the design and optimization of 1 × 2NY-branch optical splitters for telecom applications. A waveguide channel profile, used in the splitter design, is based on a standard silica-on-silicon material platform except for the lengths of the used Y-branches, design parameters such as port pitch between the waveguides and simulation parameters for all splitters were considered fixed. For every Y-branch splitter, insertion loss, non-uniformity, and background crosstalk are calculated. According to the minimum insertion loss and minimum non-uniformity, the optimum length for each Y-branch is determined. Finally, the individual Y-branches are cascade joined to design various Y-branch optical splitters, from 1 × 2 to 1 × 64.

Published
2020
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47. Simulation of Silicon Nitride Based Arrayed Waveguide Gratings Applying Three Different Photonics Tools.

Author

Gajdošová, Lenka, Seyringer, Dana, Burtschr, Catalina, Chovan, Jozef, Kuzma, Anton, and Uherek, František

Subjects
*SILICON nitride, *PHOTONICS, *SIMULATION methods & models, *WAVEGUIDES, *DIFFRACTION gratings
Abstract

We present simulation of 8-channel, 100-GHz silicon nitride based AWGs using three different commercial photonics tools, namely PHASAR from Optiwave Systems Inc., APSS from Apollo Photonics Inc. and RSoft from Synopsys Inc. For this purpose we created identical waveguide structures and identical AWG layouts in these tools and performed BPM simulations. For the simulations the same calculation conditions were used. These AWGs were designed for TM-polarized light with an AWG central wavelength of 850 nm. The output of simulations, the transmission characteristics, were used to calculate the transmission parameters defining optical properties of simulated AWGs. The achieved simulated results from all three photonics tools were analyzed and compared with each other. [ABSTRACT FROM AUTHOR]

Published
2018
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48. Silicon nitride photonic integrated circuits for optical coherence tomography

Author

He, Sailing, Vivien, Laurent, Hainberger, Rainer, Müllner, Paul, Eggeling, Moritz, Maese-Novo, Alejandro, Morozov, Yevhenii, Nevlacsil, Stefan, Cipriano, Pietro, Rist, Desiree, Sagmeister, Martin, Kraft, Jochen, Richter, Stefan, Kempe, Michael, Gloor, Stefan, Duelk, Marcus, Verwaal, Nanko, Yurtsever, Gunay, Berciano, Mathias, Ferraro, Filippo, Van Dorpe, Pol, Agneter, Anja, Nguyen, Quang, Rank, Elisabet, Drexler, Wolfgang, Trappen, Mareike, Blaicher, Matthias, Thiel, Michael, Butler, Sharon, Gradkowski, Kamil, Morrissey, Padraic, O'Brien, Peter, Vlaskovic, Marko, Zimmermann, Horst, and Seyringer, Dana

Published
2024
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49. Spectral domain and swept source optical coherence tomography on a photonic integrated circuit at 840nm for ophthalmic application.

Author

Rank, Elisabet A., Nevlacsil, Stefan, Müllner, Paul, Hainberger, Rainer, Maese-Novo, Alejandro, Dülk, Marcus, Gloor, Stefan, Völker, Matthias, Verwaal, Nanko, Meinhardt, Gerald, Sagmeister, Martin, Kraft, Jochen, Morrisey, Padraic, Jezzini, Moises, Zhiheng Quan, O'Brien, Peter, Richter, Stefan, Kempe, Michael, Seyringer, Dana, and Drexler, Wolfgang

Published
2019
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50. Spectral domain and swept source optical coherence tomography on a photonic integrated circuit at 840nm for ophthalmic application

Author

Wojtkowski, Maciej, Boppart, Stephen A., Oh, Wang-Yuhl, Rank, Elisabet A., Nevlacsil, Stefan, Müllner, Paul, Hainberger, Rainer, Maese-Novo, Alejandro, Dülk, Marcus, Gloor, Stefan, Völker, Matthias, Verwaal, Nanko, Meinhardt, Gerald, Sagmeister, Martin, Kraft, Jochen, Morrissey, Padraic, Jezzini, Moises, Quan, Zhiheng, O'Brien, Peter, Richter, Stefan, Kempe, Michael, Seyringer, Dana, and Drexler, Wolfgang

Published
2019
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