基于混沌激光产生1Gbit/s的随机数  

One Gbit/s random bit generation based on chaotic laser

作　　者：陈莎莎[1] 张建忠[1] 杨玲珍[1] 梁君生[1] 王云才[1] 

机构地区：[1]太原理工大学理学院物理系,太原030024

出　　处：《物理学报》2011年第1期38-43,共6页Acta Physica Sinica

基　　金：国家自然科学基金专项基金(批准号:60927007);量子光学与光量子器件国家重点实验室开放课题(批准号:200903)资助的课题~~

摘　　要：利用光反馈半导体激光器产生的混沌激光作为随机数发生器的物理熵源,通过8位ADC将熵源信息转化为二进制码,并经后续差分运算处理改善其随机性,最终获得了1Gbit/s的随机数.所产生的随机数通过了NIST Special Publication 800-22的全部测试项.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.

关 键 词：混沌激光 随机数发生器 半导体激光器 模数转换 

分 类 号：TN248.4[电子电信—物理电子学] TN929.11