Scalable parallel physical random number generator based on a superluminescent LED

TL;DR

This paper presents a scalable, high-speed parallel random number generator using a superluminescent LED and spectral filtering, achieving 20 Gb/s of independent random bit streams with potential for compact integration.

Contribution

It introduces a novel optoelectronic system that generates multiple independent high-speed random bit streams from a single optical source using spectral separation.

Findings

Generated two 10 Gb/s independent random streams

Achieved a total rate of 20 Gb/s

System is based on chip-compatible components

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 non-overlapping spectral filters and a fiber-coupled superluminescent light-emitting diode (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.