TY  - JOUR
AU  - Wei, Daikang
AU  - Zhu, Yajun
AU  - Liu, JIlin
AU  - Gong, Qiucheng
AU  - Kaufmann, Martin
AU  - Olschewski, Friedhelm
AU  - Knieling, Peter
AU  - Xu, Jiyao
AU  - Koppmann, Ralf
AU  - Riese, Martin
TI  - Thermally stable monolithic Doppler asymmetric spatial heterodyne interferometer: optical design and laboratory performance
JO  - Optics express
VL  - 28
IS  - 14
SN  - 1094-4087
CY  - Washington, DC
M1  - FZJ-2020-02301
SP  - 19887 -
PY  - 2020
AB  - 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.
LB  - PUB:(DE-HGF)16
C6  - pmid:32680059
UR  - <Go to ISI:>//WOS:000547061200008
DO  - DOI:10.1364/OE.394101
UR  - https://juser.fz-juelich.de/record/877579
ER  -