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1.	Dherbecourt, Jean-Baptiste, et al. (author) First steps of maturation towards space of nested cavity optical parametric oscillator and amplifiers for dial based on periodically poled nonlinear materials 2020 In: 29th international laser radar conference (ILRC 29). - : EDP Sciences. Conference paper (peer-reviewed)abstract We report on the first steps of maturation towards space of a nested cavity optical parametric oscillator and amplifiers, based On periodically poled nonlinear materials, emitting in the 2 mu m range for multi species differential absorption lidar (DIAL)
2.	Hamperl, Jonas, et al. (author) High Energy Parametric Laser Source and Frequency-Comb-Based Wavelength Reference for CO2 and Water Vapor DIAL in the 2 mu m Region : Design and Pre-Development Experimentations 2021 In: Atmosphere. - : MDPI AG. - 2073-4433. ; 12:3 Journal article (peer-reviewed)abstract We present a differential absorption lidar (DIAL) laser transmitter concept designed around a Nested Cavity Optical Parametric Oscillator (NesCOPO) based Master Oscillator Power Amplifier (MOPA). The spectral bands are located around 2051 nm for CO2 probing and 1982 nm for (H2O)-O-16 and (HDO)-O-16 water vapor isotopes. This laser is aimed at being integrated into an airborne lidar, intended to demonstrate future spaceborne instrument characteristics: high-energy (several tens of mJ nanosecond pulses) and high optical frequency stability (less than a few hundreds of kHz long term drift). For integration and efficiency purposes, the proposed design is oriented toward the use of state-of-the-art high aperture periodically poled nonlinear materials. This approach is supported by numerical calculations and preliminary experimental validations, showing that it is possible to achieve energies in the 40-50 mJ range, reaching the requirement levels for spaceborne Integrated Path Differential Absorption (IPDA) measurements. We also propose a frequency referencing technique based on beat note measurement of the laser signal with a self-stabilized optical frequency comb, which is expected to enable frequency measurement precisions better than a few 100 kHz over tens of seconds integration time, and will then be used to feed the cavity locking of the NesCOPO.

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Type of publication: conference paper (1); journal article (1)

Type of content: peer-reviewed (2)

Author/Editor: Pasiskevicius, Valda ... (2); Melkonian, Jean-Mich ... (2); Dherbecourt, Jean-Ba ... (2); Raybaut, Myriam (2); Lebat, Vincent (2); Godard, Antoine (2); show more...; Zukauskas, Andrius (1); Coetzee, Riaan Stuar ... (1); Graf, Norbert (1); Canalias, Carlota (1); Mølster, Kjell Marti ... (1); Duzellier, Sophie (1); Tanguy, Nicolas (1); Blanchard, Cedric (1); Strotkamp, Michael (1); Geus, Jan Fabian (1); Rapp, Stephan (1); Flamant, Cyrille (1); Hamperl, Jonas (1); Nagy, Lukas (1); Pitz, Oliver (1); Fehrenbacher, David (1); Schaefer, Hanjo (1); Heinecke, Dirk (1); Denk, Paul (1); Dalin, Marine (1); Santagata, Rosa (1); show less...

University: Royal Institute of Technology (2)

Language: English (2)

Research subject (UKÄ/SCB): Natural sciences (2)

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