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Scalable parallel ultrafast optical random bit generation based on a single chaotic microcomb
Pu Li1,2,3, Qizhi Li4, Wenye Tang4
1Institute of Advanced Photonics Technology, School of Information Engineering, Guangdong University of Technology, Guangzhou, 51006, China.
Light, Science & Applications
|March 4, 2024
Summary
This study introduces a new method for ultrafast random bit generation using a micro-ring resonator. The technique achieves high speeds and scalability, crucial for secure communications and advanced computing.
Area of Science:
- Optics and Photonics
- Information Security
- Computational Science
Background:
- Physical random bit generation is essential for security and simulations.
- Current methods face challenges in speed and scalability.
- Ultrafast, scalable random bit generation is highly sought after.
Purpose of the Study:
- To propose a massively parallel scheme for ultrafast random bit generation.
- To achieve random bit generation rates on the order of 100 terabits per second.
- To provide a chip-scale solution for high-speed random bit generation.
Main Methods:
- Utilizing a single micro-ring resonator.
- Employing modulation-instability-driven chaotic combs.
- Generating hundreds of independent and unbiased random bit streams simultaneously.
Main Results:
- Demonstrated proof-of-concept generating random bit streams exceeding 2 terabits per second.
- Successfully used only 7 comb lines for generation.
- Showcased potential for enhanced bit rates by increasing comb lines.
Conclusions:
- The proposed method offers a chip-scale solution for random bit generation.
- Achieves superhigh speed and large scalability.
- Suitable for secure communication and high-performance computation.
