Dr. Stefan K. Hoeffgen Profile

Dr. Stefan K. Hoeffgen

at Fraunhofer INT

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Publications (2)

Proceedings Article | 5 January 2018 Open Access

Irradiation tests on optical fibers below 20 k

J. Kuhnhenn, S. Hoeffgen, O. Köhn, O. Schumann, U. Weinand, R. Wolf

Proceedings Volume 10563, 105632A (2018) https://doi.org/10.1117/12.2304236

KEYWORDS: Temperature metrology, Optical fibers, Signal attenuation, Optical testing, Astronomical imaging, Helium, Light sources, Atmospheric optics, Single mode fibers, Radiation effects

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Proceedings Article | 28 April 2009 Paper

Radiation sensitivity of Bragg gratings written with femtosecond IR lasers

Dan Grobnic, Henning Henschel, Stefan Hoeffgen, Jochen Kuhnhenn, Stephen Mihailov, Udo Weinand

Proceedings Volume 7316, 73160C (2009) https://doi.org/10.1117/12.818157

KEYWORDS: Fiber Bragg gratings, Optical fibers, Ultraviolet radiation, Annealing, Hydrogen, Temperature metrology, Femtosecond phenomena, Manufacturing, Infrared lasers, Environmental sensing

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