Target tracking loop laser phased array system and control method thereof

Abstract

The invention discloses a target tracking loop laser phased array system and a control method thereof. The target tracking loop laser phased array system comprises that seed laser is connected in light path with a beam splitter; multiple laser paths split by the beam splitter are connected in light path with a plurality of optical path regulators; every optical path regulator is connected in lightpath with a phase modulator; every phase modulator is connected in light path with an amplifier; every amplifier is connected in light path with a laser collimator; the laser collimators are all connected in light path with a spectroscope; the spectroscope is connected in partial light path with a wavefront phase modulator and a beam deflecting module; the wavefront phase modulator is connected in light path with a phase control module; the phase control module is connected in a control mode with every phase modulator; a tracking and capturing module is connected via data with a beam deflecting control module; the beam deflecting control module is connected in a control mode with the beam deflecting module. The target tracking loop laser phased array system achieves tracking and targetingof a dynamic target and coherent emission of array laser. The invention also provides a control method of the target tracking loop laser phased array system.

Description

technical field [0001] The invention relates to a target-in-loop laser phased array system and a control method thereof, belonging to the field of optical engineering. Background technique [0002] At present, there are many researches on the optical phased array system. According to the superposition mode of each sub-array laser at the target, the optical phased array system can be divided into an incoherent laser array optical phased array system and a coherent laser array optical phased array system. array system. The coherent laser array based on the master oscillator power amplifier (English name is Master Oscillator Power Amplifier, referred to as MOPA) can realize synthetic aperture emission, increase the system emission aperture, and reduce the laser transmission divergence angle. Based on the target in-loop, it can also achieve compensation for atmospheric turbulence through tilt and phase control. [0003] Currently disclosed target-in-the-loop laser phased array...

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Problems solved by technology

[0005] According to one aspect of the present invention, a target-in-the-loop laser phased array system is provided, which solves the problem of the existing target-in-the-loop laser phased array system: the control rate of the laser phased array is difficult to meet the requirements of a large number of laser arrays and cannot Problems Applied to Dynamic Targets

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