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Polarization control is of vital importance in optical communications, which can affect the stability and bit error rate of a system. We demonstrate an all-fiber high-speed polarization control scheme based on a bidirectional Sagnac ring. The polarization direction can be accurately controlled by adjusting the phase difference of an electro-optic fiber phase modulator in the ring, meanwhile it is realized that only a single beam port outputs different polarization states. The phase can be adjusted accuratly to 10-3 rad, giving an extinction ratio as high as 30 dB, and the modulation speed can reach 2 GHz. The system has excellent stability, and as the optical circuit consists of simple, low cost components which can be easily integrated, there are good prospects for its application in quantum cryptography and other optical communcations fields.
[1] Bennett C H, Bessette F, Brassard G, Salvail L, Smolin J 1992 J. Cryptology 5 3
[2] Li H W, Wang S, Huang J Z, Chen W, Yin Z Q, Li F Y, Zhou Z, Liu D, Zhang Y, Guo G C, Bao W S, Han Z F 2011 Phys. Rev. A 84 062308
[3] Zhao H, Ma H Q, Li Y L, Wu L A 2005 Acta Sin. Quantum Opt. 11 2 (in Chinese) [赵环, 马海强, 李亚玲, 吴令安 2005 量子光学学报 11 2]
[4] Gordon K J, Fernandez V, Townsend P D, Buller G S 2004 IEEE J. Quantum Electron. 40 900
[5] Johnson M 1979 Appl. Opt. 18 1288
[6] Kidoh Y, Suematsu Y, Furuya K 1981 IEEE J. Quantum Electron. 17 991
[7] Okoshi T, Cheng Y H, Kikuchi K 1985 Electron. Lett. 21 787
[8] Liu D M, Huang D X, Nie G 1993 Acta Opt. Sin. 13 1120 (in Chinese) [刘德明, 黄德修, 聂刚 1993 光学学报 13 1120]
[9] Aarts W H J, Khoe G D 1989 J. Lightwave Technol. 7 1033
[10] Hirabayashi K, Amano C 2002 IEEE Photion. Technol. Lett. 14 504
[11] Yoshino T, Yokota M, Kenmochi T 2003 Electron. Lett. 39 1800
[12] Fan F, Guo Z, Bai J J, Wang X H, Chang S J 2011 Acta Phys. Sin. 60 084219 (in Chinese) [范飞, 郭展, 白晋军, 王湘晖, 常胜江 2011 物理学报 60 084219]
[13] Liu Y, Chen T Y, Wang J, Cai W Q, Wan X, Chen L K, Wang J H, Liu S B, Liang H, Yang L, Peng C Z, Chen K, Chen Z B, Pan J W 2010 Opt. Express 18 8587
[14] Shao J, Wu L A 1995 Acta Sin. Quantum Opt. 1 41 (in Chinese) [邵进，吴令安 1995 量子光学学报 1 41]
[15] Ma H Q, Zhao J L, Wu L A 2007 Opt. Lett. 32 698
[16] Yao Q J 2002 Optical Tutorial (Beijing:Higher Education Press) p362 (in Chinese) [姚启钧 2002 光学教程(北京:高等教育出版社) 第362页]
[17] Bennett C H, Brassard G 1984 Proc. IEEE Internat. Conf. on Computers Bangalore, India, December 10-19 1984, p175
[18] Wu L A 1998 Physics 27 544 (in Chinese) [吴令安 1998 物理 27 544]
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[1] Bennett C H, Bessette F, Brassard G, Salvail L, Smolin J 1992 J. Cryptology 5 3
[2] Li H W, Wang S, Huang J Z, Chen W, Yin Z Q, Li F Y, Zhou Z, Liu D, Zhang Y, Guo G C, Bao W S, Han Z F 2011 Phys. Rev. A 84 062308
[3] Zhao H, Ma H Q, Li Y L, Wu L A 2005 Acta Sin. Quantum Opt. 11 2 (in Chinese) [赵环, 马海强, 李亚玲, 吴令安 2005 量子光学学报 11 2]
[4] Gordon K J, Fernandez V, Townsend P D, Buller G S 2004 IEEE J. Quantum Electron. 40 900
[5] Johnson M 1979 Appl. Opt. 18 1288
[6] Kidoh Y, Suematsu Y, Furuya K 1981 IEEE J. Quantum Electron. 17 991
[7] Okoshi T, Cheng Y H, Kikuchi K 1985 Electron. Lett. 21 787
[8] Liu D M, Huang D X, Nie G 1993 Acta Opt. Sin. 13 1120 (in Chinese) [刘德明, 黄德修, 聂刚 1993 光学学报 13 1120]
[9] Aarts W H J, Khoe G D 1989 J. Lightwave Technol. 7 1033
[10] Hirabayashi K, Amano C 2002 IEEE Photion. Technol. Lett. 14 504
[11] Yoshino T, Yokota M, Kenmochi T 2003 Electron. Lett. 39 1800
[12] Fan F, Guo Z, Bai J J, Wang X H, Chang S J 2011 Acta Phys. Sin. 60 084219 (in Chinese) [范飞, 郭展, 白晋军, 王湘晖, 常胜江 2011 物理学报 60 084219]
[13] Liu Y, Chen T Y, Wang J, Cai W Q, Wan X, Chen L K, Wang J H, Liu S B, Liang H, Yang L, Peng C Z, Chen K, Chen Z B, Pan J W 2010 Opt. Express 18 8587
[14] Shao J, Wu L A 1995 Acta Sin. Quantum Opt. 1 41 (in Chinese) [邵进，吴令安 1995 量子光学学报 1 41]
[15] Ma H Q, Zhao J L, Wu L A 2007 Opt. Lett. 32 698
[16] Yao Q J 2002 Optical Tutorial (Beijing:Higher Education Press) p362 (in Chinese) [姚启钧 2002 光学教程(北京:高等教育出版社) 第362页]
[17] Bennett C H, Brassard G 1984 Proc. IEEE Internat. Conf. on Computers Bangalore, India, December 10-19 1984, p175
[18] Wu L A 1998 Physics 27 544 (in Chinese) [吴令安 1998 物理 27 544]
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