【摘要】 利用新型光折变自适应光外差探测系统,对相位畸变的高速振幅调制信号进行了光外差探测实验研究,获得了稳定的光外差输出.实验研究表明,提高本振光强度可提高光外差输出信号强度,所以该系统适用于对弱信号的探测;同时新型系统对高速振幅调制信号光有更高的探测灵敏度.因此,这种新型光折变自适应光外差探测系统可应用于空间相位畸变的时域高速调制弱信号光的外差探测.更多还原

【Abstract】 For detecting high speed amplitude modulated distorting beams, a stable output signal is obtained in a new photorefractive adaptive optical heterodyne detection system. It is shown by experiment that the amplitude of the output signal is amplified by increasing the reference beam intensity, with the sensitivity of the system being higher, so the new system can be applied in detecting the weak high speed amplitude modulated distorting beam.更多还原