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Feasibility and performance study for a space-borne 1645nm OPO for French-German satellite mission MERLIN

Elsen, Florian and Heinzig, Matthias and Livrozet, Marie J. and Löhring, Jens and Wüppen, Jochen and Büdenbender, Christian and Fix, Andreas and Jungbluth, Bernd (2014) Feasibility and performance study for a space-borne 1645nm OPO for French-German satellite mission MERLIN. In: SPIE Proceedings Vol. 9135 Laser Sources and Applications II, 9135. Photonics Europe, 14.-17. Apr. 2014, Brussels, Belgium. DOI: 10.1117/12.2052396

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Official URL: http://spie.org/Publications/Proceedings/Paper/10.1117/12.2052396


We present a theoretical and experimental analysis of a pulsed 1645 nm optical parametric oscillator (OPO) to prove the feasibility of such a device for a spaceborne laser transmitter in an integrated path differential absorption (IPDA) lidar system. The investigation is part of the French-German satellite mission MERLIN (Methane Remote Sensing Lidar Mission). As an effective greenhouse gas, methane plays an important role for the global climate. The architecture of the OPO is based on a conceptual design developed by DLR, consisting of two KTA crystals in a four-mirror-cavity. Using numerical simulations, we studied the performance of such a setup with KTP and investigated means to optimize the optical design by increasing the efficiency of the OPO and decreasing the fluence on the optical components. For the experimental testing of the OPO, we used the INNOSlab-based ESA pre-development model ATLAS as pump laser at 1064 nm. The OPO obtained 9.2 mJ pulse energy at 1645 nm from 31.5 mJ of the pump and a pump pulse duration of 42 ns. This corresponds to an optical/optical efficiency of 29%. After the pump pulse was reduced to 24 ns, a similar OPO performance could be obtained by adapting the pump beam radius. In recent experiments with optimized optical design the OPO obtained 12.5 mJ pulse energy at 1645 nm from 32.0 mJ of the pump, corresponding to an optical/optical efficiency of 39%. Two different methods were applied to study the laser damage thresholds of the optical elements used.

Item URL in elib:https://elib.dlr.de/92946/
Document Type:Conference or Workshop Item (Speech)
Title:Feasibility and performance study for a space-borne 1645nm OPO for French-German satellite mission MERLIN
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Elsen, FlorianFraunhofer-Institut für LasertechnikUNSPECIFIED
Heinzig, MatthiasFraunhofer-Institut für LasertechnikUNSPECIFIED
Livrozet, Marie J.Fraunhofer-Institut für LasertechnikUNSPECIFIED
Löhring, JensFraunhofer-Institut für Lasertechnik, AachenUNSPECIFIED
Wüppen, JochenFraunhofer-Institut für LasertechnikUNSPECIFIED
Büdenbender, ChristianDLR, IPAUNSPECIFIED
Jungbluth, BerndFraunhofer-Institut für LasertechnikUNSPECIFIED
Date:16 April 2014
Journal or Publication Title:SPIE Proceedings Vol. 9135 Laser Sources and Applications II
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1117/12.2052396
Mackenzie, Jacob I.Univ of Southampton
Jelínková, HelenaCzech Technical Univ in Prague
Taira, TakunoriNational Institutes of Natural Sciences, Institute for Molecular Science (IMS), Okazaki, Japan
Ahmed, Marwan AbdouUNSPECIFIED
Series Name:SPIE Proceedings
Keywords:Frequency Conversion, Optical Parametric Oscillators, Lasers, Near Infrared, Methane, Lidar, Satellite
Event Title:Photonics Europe
Event Location:Brussels, Belgium
Event Type:international Conference
Event Dates:14.-17. Apr. 2014
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben LIDAR-Forschung und -Entwicklung
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Deposited By: Fix, Dr.rer.nat. Andreas
Deposited On:02 Dec 2014 11:32
Last Modified:02 Dec 2014 11:32

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