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In this paper, chaotic light generated by optical feedback semiconductor laser is employed as entropy source. The output waveform of chaotic laser is converted into a binary bit stream by an 8-bit ADC. The generated binary sequences are optimized to equalize the ratio of 1 and 0 by the difference between consecutive sampled 8-bit values. Finally a random bit sequence at rates of up to 1 Gbit/s is realized, and the randomness of long bit strings is verified by the NIST Special Publication 800-22 tests.
[1] Aaldert C 1991 Am. J. Phys. 59 700
[2] Petrie C S, Connelly J A 2000 IEEE Trans. Circuits Syst. I 47 615
[3] Bucci M, Germani L, Luzzi R, Trifiletti A, Varanonuovo M 2003 IEEE Trans. Computers 52 403
[4] Stojanovski T, Pihl J, Kocarev L 2001 IEEE Trans. Circuits Syst. I 48 382
[5] Zhou Q,Hu Y,Liao X F 2008 Acta Phys. Sin. 57 5413 (in Chinese) [周 庆、胡 月、廖晓峰 2008 57 5413]
[6] Liao J, Liang C, Wei Y J, Wu L A, Pan S H 2001 Acta Phys. Sin. 50 467 (in Chinese) [廖 静、梁 创、魏亚军、吴令安、潘少华 2001 50 467]
[7] Feng M M, Qin X L, Zhou C Y, Xiong L, Ding L E 2003 Acta Phys. Sin. 52 72 (in Chinese) [冯明明、秦小林、周春源、熊 利、丁良恩 2003 52 72]
[8] Wang A B, Wang Y C, Wang J F 2009 Opt. Lett. 34 1144
[9] Wang Y C, Zhang G W, Wang A B, Wang B J, Li Y L,Guo P 2007 Acta Phys. Sin. 56 4372 (in Chinese) [王云才、张耕玮、王安帮、王冰洁、李艳丽、郭 萍 2007 56 4372]
[10] Argyris A, Hamacher M, Chlouverakis K E, Bogris A, Syvridis D 2008 Phys. Rev. Lett. 100 194101
[11] Wang Y C, Tang J H, Zhang M J Chinese patent ZL200710062140.1 2007 (in Chinese) [王云才、汤君华、张明江 中国发明专利 ZL200710062140.1 2007]
[12] Uchida A, Amano K, Inoue M, Hirano K, Naito S, Someya H, Oowada I, Kurashige T, Shiki M, Yoshimori S, Yoshimura K, Davis P 2008 Nature Photon. 2 728
[13] Hirano K, Amano K, Uchida A, Naito S, Inoue M, Yoshimori S, Yoshimura K, Davis P 2009 IEEE J. Quantum Electron. 45 1367
[14] Reidler I, Aviad Y, Rosenbluh M, Kanter I 2009 Phys. Rev. Lett. 103 024102
[15] Kanter I, Aviad Y, Reidler I, Cohen E, Rosenbluh M 2010 Nature Photonics 4 58
[16] Lin F Y, liu J M 2003 Opt. Commun. 221 173
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[1] Aaldert C 1991 Am. J. Phys. 59 700
[2] Petrie C S, Connelly J A 2000 IEEE Trans. Circuits Syst. I 47 615
[3] Bucci M, Germani L, Luzzi R, Trifiletti A, Varanonuovo M 2003 IEEE Trans. Computers 52 403
[4] Stojanovski T, Pihl J, Kocarev L 2001 IEEE Trans. Circuits Syst. I 48 382
[5] Zhou Q,Hu Y,Liao X F 2008 Acta Phys. Sin. 57 5413 (in Chinese) [周 庆、胡 月、廖晓峰 2008 57 5413]
[6] Liao J, Liang C, Wei Y J, Wu L A, Pan S H 2001 Acta Phys. Sin. 50 467 (in Chinese) [廖 静、梁 创、魏亚军、吴令安、潘少华 2001 50 467]
[7] Feng M M, Qin X L, Zhou C Y, Xiong L, Ding L E 2003 Acta Phys. Sin. 52 72 (in Chinese) [冯明明、秦小林、周春源、熊 利、丁良恩 2003 52 72]
[8] Wang A B, Wang Y C, Wang J F 2009 Opt. Lett. 34 1144
[9] Wang Y C, Zhang G W, Wang A B, Wang B J, Li Y L,Guo P 2007 Acta Phys. Sin. 56 4372 (in Chinese) [王云才、张耕玮、王安帮、王冰洁、李艳丽、郭 萍 2007 56 4372]
[10] Argyris A, Hamacher M, Chlouverakis K E, Bogris A, Syvridis D 2008 Phys. Rev. Lett. 100 194101
[11] Wang Y C, Tang J H, Zhang M J Chinese patent ZL200710062140.1 2007 (in Chinese) [王云才、汤君华、张明江 中国发明专利 ZL200710062140.1 2007]
[12] Uchida A, Amano K, Inoue M, Hirano K, Naito S, Someya H, Oowada I, Kurashige T, Shiki M, Yoshimori S, Yoshimura K, Davis P 2008 Nature Photon. 2 728
[13] Hirano K, Amano K, Uchida A, Naito S, Inoue M, Yoshimori S, Yoshimura K, Davis P 2009 IEEE J. Quantum Electron. 45 1367
[14] Reidler I, Aviad Y, Rosenbluh M, Kanter I 2009 Phys. Rev. Lett. 103 024102
[15] Kanter I, Aviad Y, Reidler I, Cohen E, Rosenbluh M 2010 Nature Photonics 4 58
[16] Lin F Y, liu J M 2003 Opt. Commun. 221 173
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