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

Livrozet, Marie J. and Elsen, Florian and Wüppen, Jochen and Löhring, Jens and Büdenbender, Christian and Fix, Andreas and Jungbluth, Bernd and Hoffmann, Dieter (2014) Feasibility and performance study for a space-borne 1645nm OPO for French-German satellite mission MERLIN. Bellingham, WA: SPIE, 2014 (SPIE Proceedings 8959). SPIE, 2.-4.2.2014, San Francisco. doi: 10.1117/12.2041422. ISBN 978-0-8194-9872-4.

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Official URL: http://proceedings.spiedigitallibrary.org/proceeding.aspx?articleid=1839012


We present a theoretical and experimental analysis of a pulsed 1645 nm optical parametric oscillator (OPO) conducted 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. One of the cavity mirrors is piezo-driven to provide single frequency operation of the OPO. Using numerical simulations, we studied the performance and alignment tolerances of such a setup with KTP and KTA and investigated means to optimize the optical design by increasing the efficiency 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. At a pulse frequency of 25 Hz this MOPA delivers a pump energy up to 45 mJ with a beam quality factor of about M² = 1.3. With KTP as nonlinear crystal 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.

Item URL in elib:https://elib.dlr.de/92900/
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 AuthorsAuthor's ORCID iD
Livrozet, Marie J.Fraunhofer-Institut für LasertechnikUNSPECIFIED
Elsen, FlorianFraunhofer-Institut für LasertechnikUNSPECIFIED
Wüppen, JochenFraunhofer-Institut für LasertechnikUNSPECIFIED
Löhring, JensFraunhofer-Institut für Lasertechnik, AachenUNSPECIFIED
Büdenbender, ChristianDLR, IPAUNSPECIFIED
Jungbluth, BerndFraunhofer-Institut für LasertechnikUNSPECIFIED
Hoffmann, DieterFraunhofer-Institut für LasertechnikUNSPECIFIED
Date:February 2014
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1117/12.2041422
Page Range:89590G
EditorsEmailEditor's ORCID iD
Clarkson, W.A.Society of Photo-Optical Instrumentation Engineers -SPIE-, Bellingham/WashUNSPECIFIED
Publisher:Bellingham, WA: SPIE, 2014 (SPIE Proceedings 8959)
Series Name:Solid State Lasers XXIII- Technology and Devices
Keywords:Optical parametric oscillators ; Satellites ; Ferroelectric materials ; LIDAR ; Lasers ; Methane ; Mirrors ; Nonlinear crystals ; Numerical simulations ; Optical components
Event Title:SPIE
Event Location:San Francisco
Event Type:international Conference
Event Dates:2.-4.2.2014
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - LIDAR research and development
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Deposited By: Fix, Dr.rer.nat. Andreas
Deposited On:01 Dec 2014 14:30
Last Modified:01 Dec 2014 14:30

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