Fundacio Institut De Ciencies Fotoniques

Institucio Catalana De Recerca / Estudis Avancats

Carlos Abellan Sanchez

A method for physical random number generation includes the steps of: modulating the gain of a vertical-cavity surface-emitting laser periodically from the lower threshold to the upper threshold and back; maintaining the gain per round trip positive for a longer period than the round trip time of the cavity; maintaining the net gain per round trip negative for a longer period than the round trip time of the cavity, in order to create optical pulses of random amplitude; detecting the optical pulses; converting the optical pulses into electrical analog pulses; and digitising the electrical analog pulses into random numbers.

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Bacelona, Spain

Carlos Abellan Sanchez