[1] Ke Xizheng, Xi Xiaoli. The survey of Wireless Laser Communication [M].Beijing University of Posts and Telecommunications Press,2004
[2] 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[J]. Phys. Rev.Lett.,2002, 88: 013601
[3] Zdenek Bouchal, Radek Celechovsky. Mixed vortex states of light as information carriers[J].New J. Phys.,2004, 6(1):131
[4] Liu Yidong , Gao ChunqQing ,Gao Mingwei et al.. Realizing high density optical data storage by using orbital angular momentum of light beam[J]. Acta Physica Sinica, 2007, 56 (2):854～858
[5] L.Allen, V.E.Lembessis, M.Babiker. Spin-orit coupling in free–space Laguerre–Gaussian light beam [J].Phys. Rew.,1996, A53 (5):2937
[6] J.A.Davis, E.Carcole , D.M.Cottrell. Intensity and phase measurement of nondiffracting beams generated with a magneto-optic spatial light modulator [J].Appl.Opt.,1996, 35 (4):593～598
[7] Jennifer E.Curtis , David G.Grier. Modulated optical vortices[J].Opt.Lett.,2003, 28 : 872～874
[8] J.Arlt, K.Aholakia. Generation of high–order Bessel beams by use of an axicon [J]. Opt. Commun., 2000, 177 :297～301
[9] Graham Gibson, Johannes Courtial, Miles J. Padgett. Free-space information transferusing light beams carrying orbital angular momentum[J].Optics Express,2004, 12(22):5448～5456
[10] G.Gibson, J. Courtial, M. Vasnetsov et al.. Increasing the data density of free-space optical communications using orbital angular momentum[C].SPIE, 2004, 5550:367～373
