caa a22 4500 445372354 CHVBK 20180317142951.0 cr unu---uuuuu 170323e20110301xx s 000 0 eng 10.1007/s00340-010-4310-5 doi (NATIONALLICENCE)springer-10.1007/s00340-010-4310-5 Water vapor differential absorption lidar measurements using adiode-pumped all-solid-state laser at 935nm [Elektronische Daten] [A. Fix, G. Ehret, J. Löhring, D. Hoffmann, M. Alpers] A diode-pumped, single-frequency laser system emitting at 935nm has recently been developed to serve as the transmitter for water vapor differential absorption lidar (DIAL) measurements. This laser uses Nd:YGG (Y3Ga5O12) as the active medium and emits radiation directly at 935nm without the need of additional frequency conversion processes. The system was diode-pumped at 806 nm and was built up in a master-oscillator-power-amplifier configuration. It generates more than 30mJ of pulse energy at 100Hz repetition rate with a beam quality (M 2) of better than1.4. Since water vapor DIAL demands for stringent requirements of the spectral properties those were carefully investigated in the scope of this paper. Single-frequency operation is achieved by injection seeding and active length control of the oscillator cavity. The range of continuously tunable single-frequency radiation extends to ∼0.4nm centered around 935.31nm. Values of the spectral purity of >99.996% were determined using long-pass absorption measurements in the atmosphere exceeding the requirements by a large margin. Finally, for the first time water vapor DIAL measurements were performed using a Nd:YGG laser. The reported results show much promise of these directly pumped lasers at 935nm for future spaceborne but also airborne water vapor lidar systems. The Author(s), 2010 Fix A. Institut für Physik der Atmosphäre, Deutsches Zentrum für Luft- und Raumfahrt (DLR), 82234, Oberpfaffenhofen, Germany aut Ehret G. Institut für Physik der Atmosphäre, Deutsches Zentrum für Luft- und Raumfahrt (DLR), 82234, Oberpfaffenhofen, Germany aut Löhring J. Fraunhofer-Institut für Lasertechnik (ILT), Steinbachstr. 15, 52074, Aachen, Germany aut Hoffmann D. Fraunhofer-Institut für Lasertechnik (ILT), Steinbachstr. 15, 52074, Aachen, Germany aut Alpers M. Raumfahrt-Agentur, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Königswinterer Straße 522-524, 53227, Bonn, Germany aut Applied Physics B Springer-Verlag 102/4(2011-03-01), 905-915 0946-2171 102:4<905 2011 102 340 https://doi.org/10.1007/s00340-010-4310-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s00340-010-4310-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fix A. Institut für Physik der Atmosphäre, Deutsches Zentrum für Luft- und Raumfahrt (DLR), 82234, Oberpfaffenhofen, Germany aut NATIONALLICENCE 700 1- Ehret G. Institut für Physik der Atmosphäre, Deutsches Zentrum für Luft- und Raumfahrt (DLR), 82234, Oberpfaffenhofen, Germany aut NATIONALLICENCE 700 1- Löhring J. Fraunhofer-Institut für Lasertechnik (ILT), Steinbachstr. 15, 52074, Aachen, Germany aut NATIONALLICENCE 700 1- Hoffmann D. Fraunhofer-Institut für Lasertechnik (ILT), Steinbachstr. 15, 52074, Aachen, Germany aut NATIONALLICENCE 700 1- Alpers M. Raumfahrt-Agentur, Deutsches Zentrum für Luft- und Raumfahrt (DLR), Königswinterer Straße 522-524, 53227, Bonn, Germany aut NATIONALLICENCE 773 0- Applied Physics B Springer-Verlag 102/4(2011-03-01), 905-915 0946-2171 102:4<905 2011 102 340 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer