Control of near-field intensity of laser beam based on adaptive optics

In two-deformablemirror adaptive optics systems, the outing main laser compared to the beacon light should have the same amplitude distribution and conjugated phase, and when the main laser reaches the target with the same distribution as the beacon light from the target, the main laser’s amplitude and phase have been corrected. According to the two-deformable-mirror adaptive optics technology, this paper presents a method based on adaptive optics system to control the nearfield intensity of laser beam, and experimentally validates the feasibility of the two-deformable-mirror technology. This method uses the Hartmann-Shack(H-S) wave-front sensor to detect the wave-front information, which is utilized in the control of the deformable mirror to achieve near-field intensity control over