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Water Vapor Differential Absorption Lidar Measurements using a Diode-Pumped All-Solid-State Laser at 935 nm

Fix, Andreas und Ehret, Gerhard und Löhring, Jens und Hoffmann, Dieter und Alpers, Matthias (2011) Water Vapor Differential Absorption Lidar Measurements using a Diode-Pumped All-Solid-State Laser at 935 nm. Applied Physics B - Lasers and Optics, 102, Seiten 905-915. Springer Verlag. DOI: 10.1007/s00340-010-4310-5. ISSN 0946-2171.

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Offizielle URL: http://link.springer.com/article/10.1007%2Fs00340-010-4310-5#


A diode-pumped, single-frequency laser system emitting at 935 nm 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 935 nm without the need of additional frequency conversion processes. The system was diode-pumped at 806nm and was built up in a master-oscillator power-amplifier configuration. It generates more than 30 mJ of pulse energy at 100 Hz repetition rate with a beam quality (M2) of better than 1.4. 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 ~0.4 nm centered around 935.31 nm. 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 935 nm for future spaceborne but also airborne water vapor lidar systems.

Titel:Water Vapor Differential Absorption Lidar Measurements using a Diode-Pumped All-Solid-State Laser at 935 nm
AutorenInstitution oder E-Mail-Adresse der Autoren
Fix, AndreasDLR, IPA
Ehret, GerhardDLR, IPA
Löhring, JensILT, FhG
Hoffmann, DieterILT, FhG
Alpers, MatthiasDLR
Erschienen in:Applied Physics B - Lasers and Optics
Referierte Publikation:Ja
In ISI Web of Science:Ja
DOI :10.1007/s00340-010-4310-5
Seitenbereich:Seiten 905-915
Verlag:Springer Verlag
Stichwörter:Remote sensing; LIDAR and adaptive systems Diode-pumped lasers Water in the atmosphere
HGF - Forschungsbereich:Verkehr und Weltraum (alt)
HGF - Programm:Weltraum (alt)
HGF - Programmthema:W EO - Erdbeobachtung
DLR - Schwerpunkt:Weltraum
DLR - Forschungsgebiet:W EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):W - Projekt WALES (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Lidar
Hinterlegt von: Dr.rer.nat. Andreas Fix
Hinterlegt am:06 Dez 2010 14:54
Letzte Änderung:23 Jul 2015 16:39

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