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Radiation tests on erbium-doped garnet crystals for spaceborne CH4-Lidar applications

 
: Meissner, A.; Kreitler, M.; Cubera, M.; Kucirek, P.; Gronloh, B.; Esser, D.; Höfer, M.; Hoffmann, H.D.

:
Postprint urn:nbn:de:0011-n-3436235 (545 KByte PDF)
MD5 Fingerprint: 66ad90d1595f2a0ffff0c7183d61e9c5
Copyright Society of Photo-Optical Instrumentation Engineers. One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this paper for a fee or for commercial purposes, or modification of the content of the paper are prohibited.
Erstellt am: 24.11.2015


Clarkson, W. Andrew ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Solid state lasers XXIV: Technology and devices. Proceedings : 8 - 10 February 2015, San Francisco, California, United States
Bellingham, WA: SPIE, 2015 (SPIE Proceedings 9342)
ISBN: 978-1-62841-432-5
Paper 93420H
Conference "Solid State Lasers - Technology and Devices" <24, 2015, San Francisco/Calif.>
Englisch
Konferenzbeitrag, Elektronische Publikation
Fraunhofer ILT ()

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.

: http://publica.fraunhofer.de/dokumente/N-343623.html