Dr. Jaroslaw Walczak Profile

Dr. Jaroslaw Walczak

at Lodz Univ of Technology

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Author

Publications (7)

Proceedings Article | 19 February 2018 Paper

Impact of the top DBR in GaAs-based VCSELs on the threshold current and the cavity photon lifetime

Patrycja Śpiewak, Marcin Gębski, Nasibeh Haghighi, Ricardo Rosales, Paulina Komar, Jarosław Walczak, Marta Więckowska, Robert Sarzała, James Lott, Michał Wasiak

Proceedings Volume 10552, 105520O (2018) https://doi.org/10.1117/12.2289939

KEYWORDS: Vertical cavity surface emitting lasers, Quantum wells, Absorption, Laser damage threshold, Resistance, Oxides, Computer simulations, Optical simulations, Modulation

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Proceedings Article | 4 March 2015 Paper

Single and double oxidations in a 980-nm VCSEL: impact on certain electrical and optical properties

Patrycja Śpiewak, Tomasz Czyszanowski, Jarosław Walczak, Robert Sarzała, Philip Moser, Dieter Bimberg, James Lott, Michał Wasiak

Proceedings Volume 9381, 93810N (2015) https://doi.org/10.1117/12.2078184

KEYWORDS: Oxides, Vertical cavity surface emitting lasers, Electroluminescent displays, Capacitance, 3D modeling, Resistance, Optical properties, Active optics, Modulation, Oxidation

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Proceedings Article | 4 March 2015 Paper

VCSEL modeling with self-consistent models: From simple approximations to comprehensive numerical analysis

Maciej Dems, Piotr Beling, Marcin Gębski, Lukasz Piskorski, Jarosław Walczak, Maciej Kuc, Leszek Frasunkiewicz, Michał Wasiak, Robert Sarzała, Tomasz Czyszanowski

Proceedings Volume 9381, 93810K (2015) https://doi.org/10.1117/12.2078321

KEYWORDS: Vertical cavity surface emitting lasers, Computer simulations, Gallium arsenide, Optical simulations, Numerical analysis, Oxides, Mirrors, Physical phenomena, Semiconductor lasers, Laser damage threshold

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Proceedings Article | 3 March 2014 Paper

Coaxial tunnel junctions: a novel approach to reduce the current crowding effect in electrically-pumped VECSELs

J. Walczak, M. Wasiak, R. Sarzala, A. Sirbu, E. Kapon, T. Czyszanowski

Proceedings Volume 8966, 89660I (2014) https://doi.org/10.1117/12.2037272

KEYWORDS: Instrument modeling, Quantum wells, 3D modeling, Output couplers, Gallium arsenide, Thermal modeling, Diffusion, Calibration, Vertical external cavity surface emitting lasers, Copper

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Proceedings Article | 13 March 2013 Paper

Improved single-mode emission characteristics of long-wavelength wafer-fused vertical-cavity surface-emitting lasers by intra-cavity patterning

Nicolas Volet, Tomasz Czyszanowski, Jarosław Walczak, Lukas Mutter, Benjamin Dwir, Zlatko Micković, Pascal Gallo, Vladimir Iakovlev, Alexei Sirbu, Andrei Caliman, Alexandru Mereuta, Elyahou Kapon

Proceedings Volume 8639, 86390S (2013) https://doi.org/10.1117/12.2002512

KEYWORDS: Vertical cavity surface emitting lasers, Wafer-level optics, Optical lithography, Interfaces, 3D modeling, Quantum wells, Optics manufacturing, Statistical analysis, Numerical simulations, Scanning electron microscopy

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Proceedings Article | 15 May 2012 Paper

Simulation of 1550-nm diamond VECSEL with high contrast grating

Jaroslaw Walczak, Tomasz Czyszanowski, Maciej Dems, Robert Sarzala, Adam Sokol, Michal Wasiak, Vladimir Iakovlev

Proceedings Volume 8432, 84321H (2012) https://doi.org/10.1117/12.921221

KEYWORDS: Diamond, 3D modeling, Quantum wells, Instrument modeling, Absorption, Reflectivity, Thermal modeling, Optical pumping, Copper, Silicon

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Proceedings Article | 11 February 2011 Paper

High power optically pumped VECSELs emitting in 1310-nm and 1550-nm bands

A. Sirbu, A. Mereuta, A. Caliman, N. Volet, Q. Zhu, V. Iakovlev, J. Rautiainen, J. Lyytikainen, O. Okhotnikov, J. Walczak, M. Wasiak, T. Czyszanowski, E. Kapon

Proceedings Volume 7919, 791903 (2011) https://doi.org/10.1117/12.874838

KEYWORDS: Mirrors, Quantum wells, Diamond, Semiconducting wafers, Gallium arsenide, Optical pumping, Oxygen, Refractive index, Wafer-level optics

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Showing 5 of 7 publications

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