METHOD AND SYSTEM FOR GENERATING HIGH-SPEED RANDOM NUMBERS BASED ON CHAOTIC OPTICAL FREQUENCY COMB

• Main Authors: WU Jiagui, TANG Xi, HU Yuqi, XIA Guangqiong, WANG Yongbo, WU Zhengmao
• Format: Patent
• Language: English
• Published: 26.06.2024

The invention provides a method and a system for generating high-speed random numbers based on a chaotic optical frequency comb. The method includes the following steps:using a semiconductor laser to generate an initial pump light; preprocessing the initial pump light and outputting a reference pump light; coupling the reference pump light by adopting a spatial free optical path coupling mode, and inputting the coupled reference pump light into a preset optical chip, where the optical chip contains a plurality of micro-resonant cavities; adjusting the semiconductor laser until the nonlinear effect occurs between the reference pump light and the micro-resonant cavity to produce an ultra-wideband Kerr frequency comb; inputting the ultra-wideband Kerr frequency comb into a demultiplexer to separate comb teeth, and collecting original comb tooth chaotic data contained in all the comb teeth; carrying out data processing on the original comb tooth chaotic data to obtain random bit streams; and generating a random number sequence based on the random bit streams. The invention has the effects of simultaneously outputting hundreds of channels of entropy sources and simultaneously generating a large number of random numbers.