Measuring scintillation index of laser beams propagating in turbulent atmosphere

The scintillation index of laser beams propagating through turbulent atmosphere was theoretically investigated. Then a remote detection system for the analysis of turbulent atmosphere was built with a data processing module based on the ARM7 embedded system and mathematical model of the scintillation index, which can transit data to PC by internet and display curves on PC user interface. With a rotating plate to simulate the turbulent atmosphere, the system was used to measure the scintillation index of laser beams propagating in turbulent atmosphere. The experimental results show that the scintillation index of Gaussian beams propagating through turbulent atmosphere increases with the propagating distance, consistent with the theoretical ones quite well. The system can work stably and mea