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INNOSLAB-based single-frequency MOPA for airborne lidar detection of CO2 and methane

: Löhring, J.; Luttmann, J.; Kasemann, R.; Schlösser, M.; Klein, J.; Hoffmann, H.-D.; Amediek, A.; Büdenbender, C.; Fix, A.; Wirth, M.; Quatrevalet, M.; Ehret, G

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Created on: 5.6.2014

Clarkson, W.A. ; Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/Wash.:
Solid state lasers XXIII : Technology and devices. 2 - 4 February 2014, San Francisco, California, United States
Bellingham, WA: SPIE, 2014 (SPIE Proceedings 8959)
ISBN: 978-0-8194-9872-4
Paper 89590J, 8 pp.
Conference "Solid State Lasers - Technology and Devices" <23, 2014, San Francisco/Calif.>
Conference Paper, Electronic Publication
Fraunhofer ILT ()
LIDAR; methane; carbon dioxide; amplifiers; optical parametric oscillators; Q switching; radiation

For the CO2 and CH4 IPDA lidar CHARM-F two single frequency Nd:YAG based MOPA systems were developed. Both lasers are used for OPO/OPA-pumping in order to generate laser radiation at 1645 nm for CH4 detection and 1572 nm for CO2 detection. By the use of a Q-switched, injection seeded and actively length-stabilized oscillator and a one-stage INNOSLAB amplifier about 85 mJ pulse energy could be generated for the CH4 system. For the CO2 system the energy was boosted in second INNOSLAB-stage to about 150 mJ. Both lasers emit laser pulses of about 30 ns pulse duration at a repetition rate of 100 Hz.