On-Axis Optical Bench for Laser Ranging Instruments in Future Gravity Missions

verfasst von
Yichao Yang, Kohei Yamamoto, Miguel Dovale Álvarez, Daikang Wei, Juan José Esteban Delgado, Jianjun Jia, Gerhard Heinzel, Vitali Müller
Abstract

The laser ranging interferometer onboard the Gravity Recovery and Climate Experiment Follow-On mission proved the feasibility of an interferometric sensor for inter-satellite length tracking with sub-nanometer precision, establishing an important milestone for space laser interferometry and the general expectation that future gravity missions will employ heterodyne laser interferometry for satellite-to-satellite ranging. In this paper, we present the design of an on-axis optical bench for next-generation laser ranging which enhances the received optical power and the transmit beam divergence, enabling longer interferometer arms and relaxing the optical power requirement of the laser assembly. All design functionalities and requirements are verified by means of computer simulations. A thermal analysis is carried out to investigate the robustness of the proposed optical bench to the temperature fluctuations found in orbit.

Organisationseinheit(en)
Institut für Gravitationsphysik
QuantumFrontiers
SFB 1464: Relativistische und quanten-basierte Geodäsie (TerraQ)
Externe Organisation(en)
CAS - Shanghai Institute of Technical Physics
Graduate University of Chinese Academy of Sciences
Max-Planck-Institut für Gravitationsphysik (Albert-Einstein-Institut)
Typ
Artikel
Journal
Sensors
Band
22
ISSN
1424-8220
Publikationsdatum
07.03.2022
Publikationsstatus
Veröffentlicht
Peer-reviewed
Ja
ASJC Scopus Sachgebiete
Analytische Chemie, Information systems, Atom- und Molekularphysik sowie Optik, Biochemie, Instrumentierung, Elektrotechnik und Elektronik
Elektronische Version(en)
https://doi.org/10.3390/s22052070 (Zugang: Offen)