Dual-wavelength high-spectral resolution lidar system based on dual-stage virtual image phased array

Abstract

The present disclosure discloses a dual-wavelength high-spectral resolution lidar system based on a dual-stage virtual image phased array. The system includes a dual-wavelength vertically polarized light emission system, first to sixth beam splitting systems, a first photodetector, a telescope, a first band-pass filter, a second band-pass filter, a second photodetector, a first dual-stage virtual image phased array system, a third photodetector, a first ICCD acquisition system, a fourth photodetector, a second dual-stage virtual image phased array system, a fifth photodetector, a second ICCD acquisition system, and a timing controller. The system has abilities of real-time detection of subsurface information in an ocean, phytoplankton vertical layered structure, vertical profile distribution of temperature and salinity of sea water, and spatiotemporal variabilities of the mixed layer depth, thereby effectively solving existing problems and shortcomings in a current ocean exploration technology, to provide a system solution for further realization of a transparent ocean.