Dr. Mika A. Toivonen Profile

Dr. Mika A. Toivonen

Senior Manager/Engineer at Coherent Finland Oy

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Author

Publications (12)

Proceedings Article | 24 February 2009 Paper

915 nm laser bar-based high-performance sources for fiber laser pumping

Rajiv Pathak, John Minelly, Jouko Haapamaa, Jason Watson, David Schleuning, Heiko Winhold, Eli Weiss, Mika Toivonen, Sami Lehkonen, David Roh, Nels Ostrom, Dan Grasso, Juergen Pfaff, T. Hasenberg

Proceedings Volume 7198, 719808 (2009) https://doi.org/10.1117/12.809785

KEYWORDS: Fiber lasers, Reliability, Diodes, Semiconductor lasers, Absorption, Packaging, Ytterbium, Measurement devices, Laser applications, Optical pumping

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Proceedings Article | 7 February 2007 Paper

Scalable high-power (>1kW/cm^2) diode laser stacks based on silicon monolithic micro-channel coolers

Patrick Reichert, Michael Fouksman, Hailong Zhou, David Nabors, Jiro Alcala, Sherry Tolman, Mika Toivonen, Sami Lehkonen, Jouko Haapamaa

Proceedings Volume 6456, 64560I (2007) https://doi.org/10.1117/12.701350

KEYWORDS: Silicon, Semiconductor lasers, Diodes, Indium, Glasses, High power lasers, Semiconducting wafers, Copper, Reliability

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Proceedings Article | 15 February 2006 Paper

High-efficiency and high-reliability 9xx-nm bars and fiber-coupled devices at Coherent

Hailong Zhou, Keith Kennedy, Eli Weiss, Jun Li, Serguei Anikitchev, Patrick Reichert, Jihua Du, David Schleuning, David Nabors, Murray Reed, Mika Toivonen, Sami Lehkonen, Jouko Haapamaa

Proceedings Volume 6104, 610406 (2006) https://doi.org/10.1117/12.644983

KEYWORDS: Laser phosphor displays, Reliability, Diodes, Semiconductor lasers, Thermal effects, Temperature metrology, Mirrors, Power supplies, Manufacturing

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Proceedings Article | 29 November 2000 Paper

Influence of oxygen incorporation on beryllium- and silicon-doped InP grown by solid source molecular beam epitaxy

Ning Xiang, Jari Likonen, Jani Turpeinen, Mika Saarinen, Mika Toivonen, Markus Pessa

Proceedings Volume 4086, (2000) https://doi.org/10.1117/12.408321

KEYWORDS: Oxygen, Silicon, Beryllium, Phosphorus, Solids, Molecular beam epitaxy, Doping, Optical properties, Luminescence, N-type semiconductors

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Proceedings Article | 17 April 2000 Paper

Resonant-cavity LEDs at 655- and 880-nm wavelengths

Pekko Sipilae, Mika Saarinen, Ville Vilokkinen, Seppo Orsila, Petri Melanen, Pekka Savolainen, Mika Toivonen, Mihail Dumitrescu, Markus Pessa

Proceedings Volume 3938, (2000) https://doi.org/10.1117/12.382816

KEYWORDS: Quantum wells, Light emitting diodes, Mirrors, Epoxies, Polymer optical fibers, Thulium, Modulation, Telecommunications, Refractive index

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Proceedings Article | 3 April 2000 Paper

Novel high-power red laser diode transverse structure

Mihail Dumitrescu, Seppo Orsila, Pekka Savolainen, Mika Toivonen, Markus Pessa

Proceedings Volume 3889, (2000) https://doi.org/10.1117/12.380901

KEYWORDS: Quantum wells, Semiconductor lasers, Cladding, Refractive index, Near field optics, GRIN lenses, Optical simulations, Waveguides, Metalorganic chemical vapor deposition, High power lasers

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Proceedings Article | 23 February 2000 Paper

Resonant cavity light-emitting diodes: modeling, design, and optimization

Mihail Dumitrescu, Pekko Sipila, Ville Vilokkinen, L. Toikkanen, Petri Melanen, Mika Saarinen, Seppo Orsila, Pekka Savolainen, Mika Toivonen, Markus Pessa

Proceedings Volume 4068, (2000) https://doi.org/10.1117/12.378731

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Proceedings Article | 14 April 1999 Paper

Solid-source molecular beam epitaxy growth and characteristics of resonant cavity light-emitting diodes

Mika Saarinen, Seppo Orsila, Mika Toivonen, Pekka Savolainen, Tiina Kuuslahti, Ville Vilokkinen, Petri Melanen, Pekko Sipilae, Markus Pessa

Proceedings Volume 3621, (1999) https://doi.org/10.1117/12.344482

KEYWORDS: Reflectivity, Light emitting diodes, Molecular beam epitaxy, Mirrors, Semiconductors, Phosphorus, Doping, Luminescence, Semiconducting wafers, Resistance

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Proceedings Article | 1 April 1999 Paper

High-power 600-nm-range lasers grown by solid-source molecular beam epitaxy

Seppo Orsila, Mika Toivonen, Pekka Savolainen, Ville Vilokkinen, Petri Melanen, Markus Pessa, Mika Saarinen, Petteri Uusimaa, Pat Corvini, Fang Fang, Mitch Jansen, Rashit Nabiev

Proceedings Volume 3628, (1999) https://doi.org/10.1117/12.344531

KEYWORDS: Molecular beam epitaxy, Semiconductor lasers, Indium gallium phosphide, High power lasers, Solids, Reliability, Gallium arsenide, Metalorganic chemical vapor deposition, Arsenic, Phosphorus

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Proceedings Article | 7 April 1998 Paper

High-power diode lasers grown by solid-source MBE

Markus Pessa, Marco Jalonen, Arto Salokatve, Pekka Savolainen, Mika Toivonen, Richard Murison, Tullio Panarello, Michael Jansen, Pat Corvini

Proceedings Volume 3284, (1998) https://doi.org/10.1117/12.304439

KEYWORDS: Semiconductor lasers, Gallium arsenide, Quantum wells, High power lasers, Reliability, Semiconducting wafers, Laser damage threshold, Oxides, Metalorganic chemical vapor deposition, Failure analysis

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Proceedings Article | 12 April 1996 Paper

State-of-the-art aluminium-free 980-nm laser diodes

Markus Pessa, Jari Nappi, Pekka Savolainen, Alexander Ovtchinnikov, Mika Toivonen, Richard Murison, Harry Asonen

Proceedings Volume 2682, (1996) https://doi.org/10.1117/12.237656

KEYWORDS: Semiconductor lasers, Failure analysis, Quantum wells, Optical amplifiers, Fiber lasers, Fiber coupled lasers, Reliability, Indium gallium phosphide, Waveguides, Absorption

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Proceedings Article | 1 March 1991 Paper

Electrical and optical properties of As- and Li-doped ZnSe films

Kurt Hingerl, Jarmo Lilja, Mika Toivonen, Markus Pessa, Wolfgang Jantsch, Donat As, W. Rothemund, P. Juza, Helmut Sitter

Proceedings Volume 1361, (1991) https://doi.org/10.1117/12.24321

KEYWORDS: Optical properties, Lithium, Arsenic, Doping

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Showing 5 of 12 publications

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