Delay signature concealment in chaotic semiconductor ring lasers

Romain Modeste Nguimdo; Guy Verschaffelt; Jan Danckaert; Guy Van der Sande

doi:10.1117/12.2052186

2 May 2014 Delay signature concealment in chaotic semiconductor ring lasers

Romain Modeste Nguimdo, Guy Verschaffelt, Jan Danckaert, Guy Van der Sande

Proceedings Volume 9134, Semiconductor Lasers and Laser Dynamics VI; 913424 (2014) https://doi.org/10.1117/12.2052186
Event: SPIE Photonics Europe, 2014, Brussels, Belgium

Abstract

We investigate different scenarios leading to simultaneous time-delay concealment both in the intensity and the phase dynamics generated from semiconductor ring lasers (SRLs) subject to delayed feedback. Under appropriate conditions, we found that the delay signature can be eliminated both in the intensity and the phase dynamics of SRLs with cross-feedback even when subject to long delayed feedback. For SRLs with self-feedback configuration, we also found that the concealment of short delay time is possible. The fact that such delay signatures can be eliminated in SRLs subject to short feedback opens the possibility of implementing secure communication schemes and random number generators on chip.

Citation Download Citation

Romain Modeste Nguimdo, Guy Verschaffelt, Jan Danckaert, and Guy Van der Sande "Delay signature concealment in chaotic semiconductor ring lasers", Proc. SPIE 9134, Semiconductor Lasers and Laser Dynamics VI, 913424 (2 May 2014); https://doi.org/10.1117/12.2052186

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available