Self-adaptive optical system based on all-optical neural network

An adaptive optics and neural network technology, applied in the field of adaptive optics system, can solve the problems of unavoidable time-consuming link of analog-to-digital conversion, difficulty in realizing KHz level control bandwidth, etc., and achieve the effect of low power consumption
CN112180583AActive Publication Date: 2021-01-05LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
Publication Date
2021-01-05

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Abstract

The invention relates to a self-adaptive optical system based on an all-optical neural network, which belongs to the technical field of self-adaptive optical systems and comprises an all-optical neural network solver, a photovoltaic conversion array and a high-voltage amplifier. According to the invention, the all-optical neural network solver formed by optical diffraction plates is used for solution and modulation of a target light beam, and the target light beam is converted to an optical signals. The self-adaptive optical system is used for replacing a wavefront sensing device, a signal resolving device, a digital-to-analog conversion device and the like in a traditional self-adaptive optical system, the response bandwidth can reach the KHz magnitude, the high-bandwidth wavefront control requirement under a non-cooperative target scene can be met, meanwhile, a traditional circuit is replaced by the optical path, and the cost is reduced. Operation from a target light beam to a deformable mirror driving electric signal is achieved with extremely low power consumption and extremely high response speed, the effect of real-time wavefront correction is achieved, and the self-adaptiveoptical system can be applied to military and other scenes with high response bandwidth requirements for light beam wavefront correction.
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Description

technical field

[0001] The invention belongs to the technical field of adaptive optical systems, and in particular relates to an adaptive optical system based on an all-optical neural network. Background technique

[0002] In view of the sensitivity of the laser to the phase of the transmission channel, the phase disturbance caused by atmospheric turbulence and other effects will cause the disturbance of the laser beam wave surface, seriously reducing the focusing performance of the laser beam, thus limiting the ability of the laser as a means of long-distance combat. In order to solve the problem of wavefront disturbance in atmospheric turbulence, adaptive optics (AO) technology, which can correct beam wavefront, came into being. A typical adaptive optics wavefront control system is mainly composed of three basic parts such as wavefront sensor, control processor, and wavefront corrector to form a basic closed-loop control system, such as figure 1 shown. The function of th...

Claims

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