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Proceedings Paper

Radiation tests on erbium-doped garnet crystals for spaceborne CH4-Lidar applications
Author(s): Ansgar Meissner; Martin Kreitler; Miroslaw Cubera; Philipp Kucirek; Bastian Gronloh; Dominik Esser; Marco Höfer; Hans-Dieter Hoffmann
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Paper Abstract

A test campaign for assessing the radiation hardness of different Erbium-doped garnet crystals including Er:YAG and a compositionally tuned Er:YAG/Er:LuAG mixed garnet is reported. Tests with proton and gamma radiation have been performed with parameters mimicking a 3-year low-earth-orbit satellite mission like MERLIN or ADM-Aeolus. For each test sample broadband transmission spectra in the wavelength range of 500 nm – 1700 nm and characteristic laser curves from a test laser oscillator have been measured. Radiation-induced losses have been calculated from the obtained data. The results indicate that gamma radiation is the dominant loss source with about 0.5 %/cm radiation-induced losses for the nominal dose of the chosen mission scenario.

Paper Details

Date Published: 20 February 2015
PDF: 13 pages
Proc. SPIE 9342, Solid State Lasers XXIV: Technology and Devices, 93420H (20 February 2015); doi: 10.1117/12.2076122
Show Author Affiliations
Ansgar Meissner, Fraunhofer-Institut für Lasertechnik (Germany)
Martin Kreitler, Fraunhofer-Institut für Lasertechnik (Germany)
Miroslaw Cubera, Fraunhofer-Institut für Lasertechnik (Germany)
Philipp Kucirek, Fraunhofer-Institut für Lasertechnik (Germany)
Bastian Gronloh, Fraunhofer-Institut für Lasertechnik (Germany)
Dominik Esser, Fraunhofer-Institut für Lasertechnik (Germany)
Marco Höfer, Fraunhofer-Institut für Lasertechnik (Germany)
Hans-Dieter Hoffmann, Fraunhofer-Institut für Lasertechnik (Germany)

Published in SPIE Proceedings Vol. 9342:
Solid State Lasers XXIV: Technology and Devices
W. Andrew Clarkson; Ramesh K. Shori, Editor(s)

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