47 / 2019-11-28 17:38:35

Influence Characteristics of Laser Transmission Amplitude Fluctuation Based on Turbulent Medium

laser transmission;,amplitude fluctuation,turbulent medium,smooth perturbation method,section radius

全体主题 > 极端条件下的物理学

In order to study the transmission characteristics of laser in atmospheric turbulent medium and understand the influence degree of various factors on amplitude fluctuation, by means of smooth perturbation method, this paper establish a theory model of amplitude fluctuation of laser propagation in turbulent medium by using the smooth perturbation method and reflect the amplitude fluctuation degree, carries out specific discussion on each influence factor. The results show that the larger the wavelength, the more stable the amplitude fluctuation. With the increase of beam section radius, the amplitude fluctuates sharply and then decreases slowly after reaching the peak. Transmission distance is the main influence factor of amplitude fluctuation. With the increase of transmission distance, the amplitude fluctuation will become more obvious. The amplitude acquisition can be comprehensively modulated in a specific transmission distance by wavelength and section radius, so as to ensure the stability of the received beam and provide a theoretical basis for the interferometry technology.