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Ultrahigh-speed random number generation based on a chaotic semiconductor laser.
I Reidler1, Y Aviad, M Rosenbluh
1Jack and Pearl Resnick Institute for Advanced Science and Technology and Department of Physics, Bar-Ilan University, Ramat-Gan, 52900 Israel.
Physical Review Letters
|August 8, 2009
Summary
This study introduces a new method for generating random bit sequences using chaotic semiconductor lasers, achieving ultrahigh speeds of 12.5 Gbits/s. This robust and simple random number generator has potential applications in secure communications and high-speed computations.
Area of Science:
- Physics
- Electrical Engineering
- Computer Science
Background:
- Generating high-speed random numbers is crucial for secure communication and complex computations.
- Existing physical random number generators often lack the required speed or robustness.
Purpose of the Study:
- To develop an ultrahigh-speed random number generator.
- To utilize the fluctuating intensity of chaotic semiconductor lasers for random sequence generation.
Main Methods:
- Employing a chaotic semiconductor laser to produce fluctuating light intensity.
- Converting the laser's intensity fluctuations into a random bit sequence via software or hardware.
Main Results:
- Achieved random sequence generation rates of up to 12.5 Gbits/s.
- Demonstrated a generation rate significantly faster than previous physical random number generators.
- The generator is simple, robust, and insensitive to control parameters.
Conclusions:
- The chaotic semiconductor laser offers a viable mechanism for ultrahigh-speed random bit sequence generation.
- The technology is suitable for applications in secure communication and high-speed computational procedures.
- The generator's performance characteristics make it a promising solution for demanding random number generation needs.
