title: Scalable parallel physical random number generator based on a superluminescent LED.
abstract: We describe an optoelectronic system for simultaneously generating parallel, independent streams of random bits using spectrally separated noise signals obtained from a single optical source. Using a pair of nonoverlapping spectral filters and a fiber-coupled superluminescent LED (SLED), we produced two independent 10 Gb/s random bit streams, for a cumulative generation rate of 20 Gb/s. The system relies principally on chip-based optoelectronic components that could be integrated in a compact, economical package.
authors.affiliation: Department of Physics, Beijing Normal University, Beijing, China. xwli@bnu.edu.cn
authors.forename: Xiaowen
authors.initials: X
authors.lastname: Li
authors.forename: Adam B
authors.initials: AB
authors.lastname: Cohen
authors.forename: Thomas E
authors.initials: TE
authors.lastname: Murphy
authors.forename: Rajarshi
authors.initials: R
authors.lastname: Roy