Random numbers can be classified as either pseudo- or physical-random in character. This work demonstrates how
laser diodes' inherent noise can be exploited for use in generating physical-random numbers in cryptographic
applications. In the initial stages of the experiment, we measured a laser diode's output, at a fast photo detector and
generated physical-random numbers from intensity noises. We then identified and evaluated the binary-number-line's
statistical properties. Our preliminary results show that fast physical-random numbers are obtainable, using the laser
diode's frequency noise characteristics.