Wavefront corrector for a phase conjugate lens

Abstract

The invention provides a wavefront corrector for a phase conjugate lens. The wavefront corrector for the phase conjugate lens is a phase conjugate lens wavefront corrector based on an MO-PVA nonlinearoptical material. Relative to incident light field wavefront, the corrector generates conjugate phase thereof.. When incident light field wavefront is transmitted once through turbulent atmosphere, phase distortion is caused and the incident light field wavefront enters a designed light path. A conjugate phase relative to an incident distortion phase is generated through transmission or reflection of the phase conjugate lens (5), and then is returned through turbulent atmosphere secondary transmission. The conjugate phase is distorted again, phase distortion generated by primary transmissionis counteracted, and the effect of correcting the distorted wavefront phase is achieved. According to the invention, a deformable mirror control system necessary for a traditional adaptive optical system is not needed; distortion wavefront correction can be realized only by using the phase conjugate lens and applying common optical elements; and the wavefront corrector has the advantages of full-view-field conjugate phase correction, high correction precision, high response speed, simple and reliable structure and the like.

Description

technical field [0001] The invention relates to the technical fields of space optics and adaptive optics, in particular to a phase conjugate lens wavefront corrector based on MO-PVA nonlinear optical material. Background technique [0002] With the increasing activities of people exploring space, the amount of information obtained from space is also increasing. The information obtained from space needs to be sent back to the ground for processing. The traditional methods of information acquisition and information transmission can no longer meet the growing demands. Spatial information bandwidth requirements. Due to the advantages of fast response and high bandwidth of light detection and light transmission, space laser communication (Free Space Optical Communication, FSOC) technology, space imaging light detection technology, and laser radar technology have been widely used. However, the use of laser to obtain information from space and transmit the information back to the ...

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a conjugate phase wavefront distortion rectifier with nonlinear optical properties MO-PVA material to overcome the signal transmission quality degradation caused by the wavefront distortion of the transmission light field caused by the turbulent atmosphere and the Imaging sharpness degradation problem

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