Apparatus for adaptively correcting laser aberation based on genetic algorithm

A genetic algorithm and laser technology, applied in the field of adaptive optics, to achieve the effects of high resonance frequency, low price and strong versatility

Inactive Publication Date: 2007-01-31
INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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  • Abstract
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Problems solved by technology

[0006] The technology of the present invention solves the problem: to overcome the deficiencies of various existing techniques for compensating MOPA solid-state laser aberrations, and to provide an indirect wavefront detection technology to detect the aberration information of the MOPA solid-state laser output laser, and then use the deformable mirror to Device for adaptively correcting laser aberration based on genetic algorithm for effective compensation of laser aberration

Method used

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  • Apparatus for adaptively correcting laser aberation based on genetic algorithm
  • Apparatus for adaptively correcting laser aberation based on genetic algorithm
  • Apparatus for adaptively correcting laser aberation based on genetic algorithm

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Embodiment Construction

[0023] Such as figure 1 As shown, the master oscillating laser 1 emits seed light with better quality, and the seed light passes through the isolation device 20 and becomes a one-way polarized light. The isolation process is as follows: the seed light first passes through the first P-direction polarizer 2 in the system to become polarized light, and then passes through the Faraday optical rotator 3 and the 1 / 2 wave plate 4, and the Faraday optical rotator 3 and the 1 / 2 wave plate 4 Used together, the seed light can be allowed to enter the power amplifier 21 in one direction, and the polarization state of the reflected output laser and the spontaneous emission light amplified by the power amplifier 21 will change by 90 degrees, so that it cannot return to the main oscillator laser 1 . The power amplifier 21 is composed of two identical laser heads 5 and 7 and a 90-degree optical rotation plate 6 . The power amplifier 21 is used to amplify the power of the seed laser, and the ...

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Abstract

The invention relates to a device of self-adapting correcting laser aberration based on genetic algorithm. It is made up of primary oscillation laser, optical isolator, power amplifier, P direction Polaroid, 1 / 4 wave plate, parallel light pipe, distortion mirror, variable density attenuation disc, spectroscope, photo detector, high pressure amplifier, data acquisition card, focusing lens, eyelet diaphragm, main control computer and control software based on genetic algorithm. The invention could be used to self-adapting correct the dynamic and static aberration of laser system. It could effectively improve the output light beam quality that needs not lower laser output power, and improve the far field facular energy concentration ratio, and expand the application field of solid laser of the MOPA.

Description

technical field [0001] The invention relates to an adaptive optics device, in particular to a device for correcting dynamic and static aberrations of MOPA solid-state laser output laser and improving the quality of output laser beams based on a genetic algorithm for self-adaptive correction of laser aberrations. Background technique [0002] Since T.Maiman invented the ruby ​​laser in 1960, laser technology has had a huge impact on the development of traditional disciplines and technologies. Related industries with laser technology as the core have become an important driving force in the era of knowledge economy and information age. Laser technology will It plays an irreplaceable key role in national economic construction, medical care and scientific research. It is a strategic, overall and leading strategic high-tech. [0003] Lasers can be divided into solid, gas, liquid, chemical and free electron lasers according to their working substances. Among them, solid-state las...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/35H01S3/00
Inventor 杨平胡诗杰杨伟陈善球许冰姜文汉
Owner INST OF OPTICS & ELECTRONICS - CHINESE ACAD OF SCI
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