Journal Article

FZJ-2020-02301

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Thermally stable monolithic Doppler asymmetric spatial heterodyne interferometer: optical design and laboratory performance

Wei, D. (Corresponding author)FZJ* ; Zhu, Y. ; Liu, J. ; Gong, Q.FZJ* ; Kaufmann, M.FZJ* ; Olschewski, F.FZJ* ; Knieling, P. ; Xu, J. ; Koppmann, R. ; Riese, M.FZJ*

2020
Washington, DC

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Please use a persistent id in citations: http://hdl.handle.net/2128/25552  doi:10.1364/OE.394101

Abstract: We report on a thermally stable monolithic Doppler asymmetric spatial heterodyne (DASH) interferometer with field-widening prisms for thermospheric wind measurements by observing the Doppler shift of the airglow emission. Analytical deduction and numerical simulation are applied to determine the central optical path difference, the thermal compensation condition and the field-widening design. A monolithic interferometer with optimized configuration was built and tested in the laboratory. Laboratory tests show that the best visibility of 0.94 was realized with the 9 ° field-of-view illumination, while the thermal responses of the spatial frequency and the optical phase offset are 0.0154 cm−1/°C and 0.469 rad/°C, respectively.

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Contributing Institute(s):

1. Stratosphäre (IEK-7)

Research Program(s):

1. 244 - Composition and dynamics of the upper troposphere and middle atmosphere (POF3-244) (POF3-244)

Appears in the scientific report 2020

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