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Random optical pulse generation with bistable semiconductor ring lasers

delete2011-04-04
delete31
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OA
AI
S
Satoshi Sunada *
T
Takahisa Harayama
K
Kenichi Arai
K
Kazuyuki Yoshimura
K
Ken Tsuzuki
A
Atsushi Uchida
P
Peter Davis
DOI：10.1364/OE.19.007439delete
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Abstract

Abstract

En 中文
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
Keywords:
RANDOM BIT GENERATION
UNIDIRECTIONAL BISTABILITY
LOW-POWER
MEMORY

Journal

Optics Express cover
Optics Express
IF:
3.3
Papers:
6.1W
Citations:
14.3W

Organization

No organization information available