Abstract
The phase fluctuation of Laguerre-Gaussian (LG) vortex beams induced by atmospheric turbulence affects the quantum phase associated with azimuth coordinates and affects the orbital angular momentum of the vortex beams. The measurement of orbital angular momentum is affected by the change in the classical phase and the quantum phase in the Hilbert space. This paper analyzes the additional random complex phase of the vortex beam generated by the atmospheric turbulence and discusses the effect of atmospheric turbulence on the orbital angular momentum of an LG vortex beam using the photon state-vector function. The distributions of the classical phase of vortex beams affected by turbulence of different strengths are calculated and compared with the case for LG vortex beams transmitted through free space. Results show that the atmospheric turbulence affects the phase value of LG vortex beams transmitted in the external field and significantly affects the beam phase structure in the near field. However, the effect of turbulence on the phase of vortex beams is insignificant for a transmission range z > 2000 m while the phase values vary slowly and gradually become constant.
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References
Molina-Terriza G, Torres J P, Torner L. Management of the angular momentum of light: preparation of photons in multidimensional vector states of angular momentum. Phys Rev Lett, 2002, 88: 013601
Torner L, Torres J P, Carrasco S. Digital spiral imaging. Opt Express, 2005, 13: 873–881
Neil A T, MacVicar I, Allen L, et al. Intrinsic and extrinsic nature of the orbital angular momentum of a light beam. Phys Rev Lett, 2002, 88: 053601
Cullet P, Gil L, Rocca F. Optical vortices. Opt Commun, 1989, 73: 403–408
Allen L, Lembessis V E, Babiker M. Spin-orit coupling in free-space Laguerre-Gaussian light beam. Phys Rev A, 1996, 53: R2937–R2939
Gibson G, Courtial J, Padgett M J. Free-space information transferusing light beams carrying orbital angular momentum. Opt Express, 2004, 12: 5448–5456
Andrews L C, Phillips R L. Laser Beam Propagation through Random Media. Bellingham: SPIE Optical Engineering Press, 1998
Wheelon A D. Electromagnetic Scintillation II: Weak Scattering. Cambridge: Cambridge University Press, 2003
Xing J B, Xu G L, Zhang X P, et al. Effect of the atmospheric turbulence on laser communication system. Acta Photonica Sin, 2005, 34: 1850–1852
Qian X M, Zhu W Y, Rao R Z. Numerical simulation of turbulent effects of laser propagation along a ground-space slant atmospheric path. Infrared Laser Eng, 2008, 37: 787–792
Yi X X, Guo L X, Wu Z S. Study on the optical scintillation for Gaussian beam propagation in the slant path through the atmospheric turbulence. Acta Opt Sin, 2005, 25: 433–439
Huang Y B, Wang Y J. Numerical analysis of the scaling laws about focused beam spreading induced by the atmosphere. Acta Phys Sin, 2006, 55: 6715–6719
Ji X L, Huang T X, Lv B D. Spreading of partially coherent cosh-Gaussian beams propagating through turbulent atmosphere. Acta Phys Sin, 2006, 55: 978–982
Paterson C. Atmospheric turbulence and orbital angular momentum of singer for optical communication. Phys Rev Lett, 2005, 94: 153901
Zhang Y X, Wang G G. Partially coherence vortex beams propagation in a turbulent atmosphere. Chin Opt Lett, 2005, 3: 559–561
Wang T, Pu J X, Rao L Z. Propagation of partially coherent vortex beams in the turbulent atmosphere. Opt Tech, 2007, 33: 4–9
Anguita J A M, Neifeld A, Vasic B V. Turbulence-induced channel crosstalk in an orbital angular momentum-multiplexed free-space optical link. Appl Opt, 2008, 47: 2414–2429
Cang J, Zhang Y X, Xu J C. Intensity distribution of focused hollow vortex beams with a Gaussian background in turbulent atmosphere. Acta Photonica Sin, 2009, 38: 2122–2125
Zhao G Y, Zhang Y X, Wang J Y, et al. Defocus and astigmatic aberration of the turbulent atmosphere and the intensity distribution of a vortex carrying Gaussian beam. Acta Phys Sin, 2009, 59: 1378–1384
Xu J C, Zhang Y X, Zhu ZW, et al. Effect of atmospheric turbulence on photon states in single photon communication. Laser Technol, 2010, 34: 839–842
ITU-R. On propagation data and prediction methods required for the desigh of space-to-earth and earth-to-space optical communication systems. In: Radio Commuication Study Group Meeting, Budapest, 2001
Lukin V P. Atmospheric Adaptive Optics. Washington: SPIE Press, 1995
Andrews L C, Phillips R L. Beam Propagation through Random Media. Washington: SPIE Press, 2005
Saleh B E A, Teich M C. Fundamentals of Photonics. New York: Wiley, 1991
Yao Z X, Zho J W, Mao B N, et al. Unusual photons with unusual angular momentum. Sci China-Phys Mech Astron, 2009, 39: 669–680
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Ke, X., Chen, J. & Lv, H. Effect of atmospheric turbulence on the orbital angular momentum of hollow vortex beams. Sci. China Inf. Sci. 56, 1–9 (2013). https://doi.org/10.1007/s11432-013-4781-1
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DOI: https://doi.org/10.1007/s11432-013-4781-1