Correlated Random Bit Generation Using Chaotic Semiconductor Lasers Under Unidirectional Optical Injection

Correlated random bit generation is investigated using three optically injected chaotic semiconductor lasers. Based on a rate-equation model, a continuous-wave injection first perturbs a common laser into chaos. The common laser then optically injects a pair of response lasers through a public chann...

Full description

Saved in:
Bibliographic Details
Published in:IEEE photonics journal 2017-10, Vol.9 (5), p.1-11
Main Authors: Li, Xiao-Zhou, Li, Song-Sui, Chan, Sze-Chun
Format: Article
Language:English
Subjects:
chaos
injection-locked lasers
Laser feedback
Laser modes
Optical feedback
random bit generation
Semiconductor lasers
Stimulated emission
Synchronization
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Correlated random bit generation is investigated using three optically injected chaotic semiconductor lasers. Based on a rate-equation model, a continuous-wave injection first perturbs a common laser into chaos. The common laser then optically injects a pair of response lasers through a public channel unidirectionally. The two response lasers of identical parameters are synchronized. Their chaotic emissions are digitized in yielding correlated random bit streams. As the scheme advantageously involves no feedback loops, the output bits contain no undesirable time-delay information artifacts. Security is ensured as the response lasers produce bits that cannot be extracted using the information in the public channel alone. Output bit streams are generated at a tunable rate of up to about 2 Gbps with randomness verified by a test suite of the National Institute of Standards and Technology. The streams are correlated with a low bit error ratio of less than 4\% , which is sensitive to parameter mismatch between the response lasers.
ISSN:1943-0655
1943-0647
DOI:10.1109/JPHOT.2017.2748978