Mr. Sami Lehkonen Profile

Sami Lehkonen

Sr. Staff Engineer

SPIE Involvement:

Author

Publications (11)

Proceedings Article | 4 March 2022 Presentation + Paper

Advances in fiber coupled high power diode laser modules at 793nm and 976nm for defense applications

Tobias Könning, Sandra Ahlert, Jan Weimar, Ruth Steinborn-Knuth, Florian Ahnepohl, Heiko Kissel, Bernd Köhler, Markus Klein, Guoli Liu, Sami Lehkonen

Proceedings Volume 11983, 119830I (2022) https://doi.org/10.1117/12.2606176

KEYWORDS: Fiber couplers, Fiber coupled lasers, Defense and security, Copper, Semiconductor lasers, Fiber lasers, High power diode lasers, Electro optics, Ytterbium, Laser applications

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Proceedings Article | 5 March 2021 Presentation + Paper

Wavelength stabilized fiber coupled modules at 79x nm, 88x nm, and 97x nm with up to 600W output power based on single emitters

Tobias Könning, Sandra Ahlert, Jan Weimar, Ruth Steinborn-Knuth, Florian Ahnepohl, Heiko Kissel, Bernd Köhler, Guoli Liu, Sami Lehkonen

Proceedings Volume 11668, 116680F (2021) https://doi.org/10.1117/12.2577691

KEYWORDS: Fiber couplers, High power diode lasers, Fiber coupled lasers, Ytterbium, Thulium, Safety, Ranging, Power supplies, Polymers, Optical components

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Proceedings Article | 2 March 2020 Paper

High power and reliable 793nm single emitter and T-bar for thulium-doped fiber laser pumping

Guoli Liu, Sami Lehkonen, Jingwei Li, Heiko Winhold, Thomas Rothacker, Farid Ahmed, Michael Peters, Paul Wolf, Sandra Ahlert, Heiko Kissel, Bernd Köhler

Proceedings Volume 11262, 1126208 (2020) https://doi.org/10.1117/12.2547345

KEYWORDS: Fiber lasers, Reliability, High power fiber coupled lasers, High power diode lasers

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Proceedings Article | 13 March 2019 Presentation

High power 808nm to 1060nm CW and QCW laser diode bars (Conference Presentation)

Guoli Liu, Sami Lehkonen, Zuntu Xu, Jingwei Li, Heiko Winhold, Sergei Govorkov, Heiko Kissel, Jens Biesenbach

Proceedings Volume 10900, 109000B (2019) https://doi.org/10.1117/12.2523782

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Proceedings Article | 4 March 2016 Paper

A fiber-coupled 9xx module with tap water cooling

D. Schleuning, D. Anthon, A. Chryssis, G. Ryu, G. Liu, H. Winhold, L. Fan, Z. Xu, T. Tanbun-Ek, S. Lehkonen, B. Acklin

Proceedings Volume 9733, 973308 (2016) https://doi.org/10.1117/12.2208303

KEYWORDS: Semiconductor lasers, Packaging, Fiber lasers, Reliability, Diodes, Laser development, Optical fibers, Modulation, Novel fiber development, Fiber coupled lasers

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Proceedings Article | 4 March 2016 Paper

Advances in 808nm high power diode laser bars and single emitters

J. Morales, S. Lehkonen, G. Liu, D. Schleuning, B. Acklin

Proceedings Volume 9733, 97330T (2016) https://doi.org/10.1117/12.2213789

KEYWORDS: Semiconductor lasers, High power diode lasers, Reliability, High power lasers, Solid state lasers, Solid state electronics, Fiber lasers, Diodes, Materials processing, Printing, Data conversion, Fiber couplers

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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-performance high-reliability 880-nm diode laser bars and fiber-array packages

M. Fouksman, S. Lehconen, J. Haapamaa, K. Kennedy, J. Li

Proceedings Volume 6104, 61040A (2006) https://doi.org/10.1117/12.659897

KEYWORDS: Reliability, Semiconductor lasers, Fiber lasers, Manufacturing, High power lasers, Laser crystals, Diodes, Diode pumped solid state lasers, Semiconducting wafers, Neodymium lasers

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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 | 17 March 2005 Paper

Conductively cooled high-power high-brightness bars and fiber-coupled arrays

Hailong Zhou, Mark Mondry, Michael Fouksman, Eli Weiss, Serguei Anikitchev, Keith Kennedy, Jun Li, Erik Zucker, Paul Rudy, Jukka Kongas, Jouko Haapamaa, Sami Lehkonen

Proceedings Volume 5711, (2005) https://doi.org/10.1117/12.589860

KEYWORDS: Reliability, Laser phosphor displays, Semiconductor lasers, Laser development, Fiber lasers, Materials processing, High power diode lasers, Manufacturing, Epitaxy

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Showing 5 of 11 publications

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