Random optical pulse generation with bistable semiconductor ring lasers

被引：32

作者：

Sunada, Satoshi ^{[1
]}

Harayama, Takahisa ^{[1
]}

Arai, Kenichi ^{[1
]}

Yoshimura, Kazuyuki ^{[1
]}

Tsuzuki, Ken ^{[2
,3
]}

Uchida, Atsushi

Davis, Peter ^{[1
]}

机构：

[1] NTT Corp, NTT Commun Sci Labs, Kyoto 6190237, Japan

[2] NTT Corp, NTT Photon Labs, Kanagawa 2430198, Japan

[3] Saitama Univ, Dept Informat & Comp Sci, Saitama 3388570, Japan

来源：

OPTICS EXPRESS | 2011年 / 19卷 / 08期

关键词：

RANDOM BIT GENERATION; UNIDIRECTIONAL BISTABILITY; LOW-POWER; MEMORY;

D O I：

10.1364/OE.19.007439

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We experimentally show that a random optical pulse train can be generated by modulating a bistable semiconductor ring laser. When the ring laser is switched from the monostable to the bistable regime, it randomly selects one of two different stable unidirectional lasing modes, clockwise or counterclockwise modes. Non-deterministic random pulse sequences are generated by driving the switch parameter, the injection current, with a periodic pulse signal. The origin of the nondeterministic randomness is the amplified spontaneous emission noise coupled to the counter-propagating lasing modes. The statistical randomness properties are optimized by adjusting the relative strength of amplified spontaneous emission noise sources for the two lasing modes. It is also shown that it is possible to generate optical pulse sequences which pass a standard suite of statistical randomness tests. (C) 2011 Optical Society of America

引用

页码：7439 / 7450

页数：12

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