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Active illumination beacon system based on alkali metal vapor laser

An alkali metal and laser technology, applied in the field of adaptive optics, can solve the problems of low detection efficiency of CCD image sensor and insufficient illumination brightness, and achieve the effects of high beam quality, improved illumination ability, and high electro-optical efficiency

Active Publication Date: 2020-01-03
NAT UNIV OF DEFENSE TECH
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Problems solved by technology

[0006] In order to solve the problems of insufficient lighting brightness and low detection efficiency of the CCD image sensor in the traditional active lighting beacon system, the present invention proposes a high-power single-frequency alkali metal vapor laser as the laser source, and utilizes the nonlinear effect in the alkali metal vapor A Novel Actively Illuminated Beacon System Using Phase Preserving Amplification of Beacon Light
This solution can solve the problems existing in the traditional active lighting beacon system, and greatly improve the tracking and transmission effect of the high-energy laser system

Method used

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  • Active illumination beacon system based on alkali metal vapor laser
  • Active illumination beacon system based on alkali metal vapor laser
  • Active illumination beacon system based on alkali metal vapor laser

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0028] Figure 4 It is a schematic structural diagram of an active illumination beacon system based on an alkali metal vapor laser according to the present invention.

[0029] An active illumination beacon system based on an alkali metal vapor laser according to the present invention includes a high-power single-frequency alkali metal vapor laser 1, an illumination light emitting and beacon light receiving device 2, a beacon light amplification device 3, and an amplifying beacon light Receiver 4.

[0030] In the embodiment, the alkali metal vapor laser is a rubidium vapor laser (wavelength 795nm), and the alkali metal vapor nonlinear effect used is the stimulated Raman effect in rubidium vapor, and the specific working process is as follows:

[0031] S1 outputs 795nm illumination light through high-power single-frequency rubidium vapor laser ...

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Abstract

The invention belongs to the field of adaptive optics, and specifically relates to an active illumination beacon system which uses a high-power single-frequency alkali metal vapor laser as a laser source and amplifies weak beacon light in a phase preserving manner by using the nonlinear effect of alkali metal vapor. The active illumination beacon system comprises a high-power single-frequency alkali metal vapor laser, an illumination light emitting and beacon light receiving device, a beacon light amplifying device and an amplified beacon light receiving device. The wavelength of the illumination laser is just close to an 'atmospheric window' and a peak value of a response curve of a CCD image sensor, and the detection efficiency is improved by nearly 10 times compared with that of a traditional active illumination beacon system. Beacon light can be amplified by several times to hundreds of times by utilizing the nonlinear effect in alkali metal vapor. Meanwhile, the single-frequency optical power of the alkali metal vapor laser serving as a potential high-power laser scheme is expected to reach the order of kilowatts to ten thousands of watts. By applying the scheme, the problemsexisting in a traditional active illumination beacon system can be solved, and the tracking and transmission effects of a high-energy laser system are greatly improved.

Description

technical field [0001] The invention belongs to the field of adaptive optics, and in particular relates to an active lighting beacon system which uses a high-power single-frequency alkali metal vapor laser as a laser source and utilizes the nonlinear effect of the alkali metal vapor to perform phase-preserving amplification on weak beacon return light. Background technique [0002] With the rapid development of laser technology, due to the advantages of fast transmission speed, high precision, long range, and strong flexibility, high-energy laser systems have been paid more and more attention to the application of target interception and space junk cleaning. Typical features are long distance, small target, and self-illumination. The high-energy laser system is mainly composed of a high-energy laser, a precision aiming and tracking system, and a beam control and emission system. The high-energy laser is used to generate a high-energy laser beam; the precision aiming and tra...

Claims

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Application Information

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IPC IPC(8): H01S3/227H01S3/094H01S3/10H01S3/30
CPCH01S3/094H01S3/10007H01S3/227H01S3/30
Inventor 王红岩陈志强习锋杰杨子宁韩凯华卫红宁禹许晓军
Owner NAT UNIV OF DEFENSE TECH
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