Chinese Journal of Lasers, Volume. 34, Issue 7, 924(2007)
An Integrable Optic-Fiber Coherent State Quantum Identification System
An integrable optic-fiber coherent state quantum identification system is presented. In the scheme, the Stokes vectors of polarization coherent state are employed as quantum signal carrier, the dynamic polarization controller serves as a modulation device, and the inherent quantum noise guarantees the security. The driving circuit of laser pulses, detection circuit for weak narrow laser pulses, and signal synchronous module, are self-designed. Classical communication needed by quantum secret communication is implemented by Socket network communication program running on the TCP/IP local area network. The running key employed in the system is 12 bit. The transmission rate of identity picture is 8 kbit/s, the bit error rate between legal users is less than 10-4, and the information I(Alice,Eve) per bit obtained by an attacker is less than 10-14.
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[in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese], [in Chinese]. An Integrable Optic-Fiber Coherent State Quantum Identification System[J]. Chinese Journal of Lasers, 2007, 34(7): 924