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Research on the Propagation Properties of the Dark Hollow Laser Beams in Atmosphere

Author: WangBo
Tutor: NingGuoBin
School: Changchun University of Science and Technology
Course: Optics
Keywords: Atmospheric transport Weak turbulence Cone double half - Gaussian hollow laser beam Intensity distribution
CLC: TN241
Type: Master's thesis
Year: 2010
Downloads: 82
Quote: 0
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Abstract


With the development of hollow laser beam on its unique transmission characteristics research attention has been paid gradually . This paper summarizes the first generation of hollow laser beam , several hollow beam transmission \A brief description of a hollow of the laser beam generating method : laser beam using a tapered double of the spectral reflectance of the generated half - Gaussian hollow . Established this novel hollow beams in weak turbulent atmospheric medium transmission intensity distribution mathematical model and in the free space meet Collins formula under the conditions of the intensity distribution of mathematical models . By calculation and analysis of the two models in the transmission process can be seen that such a hollow beam intensity distribution pattern is not changed , this feature can be verified in the subsequent transmission of such a beam in the atmospheric medium experiment .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Photonics technology,laser technology > Laser technology, the maser > Laser physics and basic theory
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