NTT has developed a system that can generate random numbers based on the irregular and complex oscillation in the output light of a semiconductor laser whose output light is reflected by a mirror and injected back into the laser.
The method achieves a higher level of unpredictability. But mnost importantly, it is faster than other technologies currently used to create random data. Generated at speeds of 4 gigabits per second (Gbps), the random numbers could be supplied to computers and servers to encrypt data.
The Japanese telecommunications company hopes to bring the technology to market within a few years.