Mark Herding
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View article: Triple mirror assembly in the GRACE Follow-On laser ranging interferometer
Triple mirror assembly in the GRACE Follow-On laser ranging interferometer Open
The Gravity Recovery And Climate Experiment (GRACE) Follow-On mission was launched on May 22, 2018, to continue monitoring changes in the gravity field of the Earth by measuring distance variations between two spacecraft that fly 200 km ap…
View article: Micro-integrated optical isolators for visible wavelengths for space application
Micro-integrated optical isolators for visible wavelengths for space application Open
Optical isolators are essential components for highly demanding applications, enabling the use of single frequency lasers. With their capability to design micro-integrated laser systems, the availability of single frequency laser diodes in…
View article: Towards NGGM: Laser Tracking Instrument for the Next Generation of Gravity Missions
Towards NGGM: Laser Tracking Instrument for the Next Generation of Gravity Missions Open
The precise tracking of distance variations between two satellites in low Earth orbit can provide key data for the understanding of the Earth’s system, specifically on seasonal and sub-seasonal water cycles and their impact on water levels…
View article: Frequency comb based absolute frequency reference design for future spaceborne multi species differential absorption lidar systems for green-house gases monitoring
Frequency comb based absolute frequency reference design for future spaceborne multi species differential absorption lidar systems for green-house gases monitoring Open
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View article: In-Orbit Performance of the GRACE Follow-on Laser Ranging Interferometer
In-Orbit Performance of the GRACE Follow-on Laser Ranging Interferometer Open
The Laser Ranging Interferometer (LRI) instrument on the Gravity Recovery and Climate Experiment (GRACE) Follow-On mission has provided the first laser interferometric range measurements between remote spacecraft, separated by approximatel…
View article: Flight design of the absolute frequency reference unit for the methane-sensing LIDAR Mission MERLIN
Flight design of the absolute frequency reference unit for the methane-sensing LIDAR Mission MERLIN Open
Light detection and ranging (LIDAR) systems have become an important technology in a variety of industrial and scientific applications.In spectroscopy, LIDAR systems can improve the sensitivity by orders of magnitude but require the laser …
View article: Optical bench of the laser ranging interferometer on grace follow-on
Optical bench of the laser ranging interferometer on grace follow-on Open
The Gravity Recovery and Climate Experiment (GRACE) is a successful Earth observation mission launched in 2002 and consisting of two identical satellites in a polar low-Earth orbit.
View article: Laser ranging interferometer on Grace follow-on
Laser ranging interferometer on Grace follow-on Open
The Gravity Recovery and Climate Experiment (GRACE) is a successful Earth observation mission launched
\nin 2002 consisting of two identical satellites in a polar low-Earth orbit [1]. The distance variations between
\nthese two satellites …
View article: High stability laser for interferometric earth gravity measurements
High stability laser for interferometric earth gravity measurements Open
ESA’s Gravity field and steady-state Ocean Circulation Explorer (GOCE) mission and the American-German Gravity Recovery and Climate Experiment (GRACE) mission map the Earth’s gravity field and deliver valuable data for climate research.
View article: The absolute frequency reference unit for the methane-sensing lidar mission Merlin
The absolute frequency reference unit for the methane-sensing lidar mission Merlin Open
The French-German Methane Remote Sensing LIDAR Mission (MERLIN) planned for launch in 2020 aims to provide a global methane concentration map. The instrument is a differential absorption LIDAR (DIAL) system measuring the column-weighted dr…
View article: GRACE-Follow On Laser Ranging Interferometer: German contribution
GRACE-Follow On Laser Ranging Interferometer: German contribution Open
The Gravity Recovery and Climate Experiment (GRACE) is a joint US/German mission that has been mapping the Earth's gravity field since 2002 by measuring the distance variations between two spacecraft using a micro-wave link. GRACE is reach…