Abstract: Space-borne cloud-aerosol lidar can accurately obtain global cloud-aerosol detection data. Using narrow-band filter of interferometer to detect clouds and aerosols in the atmosphere can improve the signal-to-noise ratio of echo signals, and make all-day detection possible. According to the requirements of using environment and temperature tuning of spaceborne lidar, a solid-etalon is selected to realize the interferometer filter, and the material selection and structural design of which are analyzed. Furthermore, the temperature-controlled structure is added during packaging, and thermal stress coupling analysis is performed on the solid etalon. Considering the influence of operating temperature and incident angle, the optimal performance test scheme is given. It is found that the temperature tuning of the solid-etalon measured according to the scheme meets the central wavelength tuning range.

Key words: laser technology, solid-etalon, space-borne lidar, structure design