Kudryashov Alexis V, Rukosuev Alexey L, Nikitin Alexander N, Galaktionov Ilya V, Sheldakova Julia V
Opt Express. 2020 Dec 7;28(25):37546-37552. doi: 10.1364/OE.409201.
Problems of constructing an adaptive optical system intended for correcting the wavefront of laser radiation that has passed through a turbulent atmosphere are considered. To ensure high-quality wavefront correction, the frequency of the discrete system should be at least 1 kHz or more. This performance can be achieved by using FPGA as the main control element of the system. The results of a laboratory experiments of the laser beam phase fluctuations caused by turbulence, produced by the airflow of a fan heater, correction by means of the FPGA-based adaptive optical system are presented. The system efficiency was evaluated at various correction frequencies up to 1875 Hz.
考虑了构建用于校正通过湍流大气的激光辐射波前的自适应光学系统的问题。为确保高质量的波前校正，离散系统的频率应至少为1kHz或更高。通过使用FPGA作为系统的主要控制元件可以实现这一性能。给出了由风扇加热器的气流产生的湍流引起的激光束相位波动的实验室实验结果，以及基于FPGA的自适应光学系统的校正结果。在高达1875Hz的各种校正频率下评估了系统效率。
