Propagation offset characteristics of annular laser beams from confocal unstable resonators through the natural atmosphere

Peng, Yufeng; Liu, Li; Egorov, V. S.; Cheng, Zhen; Ming-gao, Zhang

doi:10.1016/j.optcom.2007.10.066

Cited by 15 publications

(1 citation statement)

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“…The Propagation of many well-known beam modes such as Hermite-Gaussian (H-G), Sinh-Gaussian (Sh-G) and BesselGaussian (B-G) in partial coherency condition, through turbulent atmosphere have been modeled analytically and reported [5][6][7]. Also propagation of fully coherent beam from specific confocal unstable resonator though turbulent atmosphere is studied by Peng et al using Fast Fourier Transforms (FFT) technique [8]. Very recently, we have reported the results of a numerical investigation on the effects of atmospheric turbulence on a different beam profile [9].…”

Section: Introductionmentioning

confidence: 99%

Effects of atmospheric turbulence on the divergence of partial coherent beam from unstable resonator

Shayganmanesh

Mahdieh

2012

SPIE Proceedings

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In this paper propagation of partially coherent beam of unstable resonator through turbulent atmosphere is modelled numerically. The dominant transverse mode of resonator is achieved by Huygens-Fresnel integral using iterative calculations and profile of propagating beam is calculated by extended Huygens-Fresnel integral. The effect of atmospheric turbulence on the divergence of partial coherent beam is investigated numerically. Far filed beam distribution is calculated and using encircled (cumulative) power, beam divergence and beam diameter are calculated for different resonators in different turbulence condition. The results shows that beam divergence and the propagated beam diameter are strongly depend on the resonator size and turbulence strength, but weakly to the coherence.

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Section: Introductionmentioning

confidence: 99%