Radio-frequency spectrum coding in ultra-long fibre laser based cryptography


We propose a new approach for secret key exchange involving the variation of the cavity length of an ultra-long fibre laser. The scheme is based on the realisation that the free spectral range of the laser cavity can be used as an information carrier. We present a proof-of-principle demonstration of this new concept using a 50-km-long fibre laser to link two users, both of whom can randomly add an extra 1-km-long fibre segment.

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Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
College of Engineering & Physical Sciences > Systems analytics research institute (SARI)
Additional Information: © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. Funding: French National Research Agency (LABEX SIGMALIM; ANR 08-JCJC-0122 PARADHOQS); European Research Council (ULTRALASER); Leverhulme Trust (RPG- 278); Spanish MICINN (TEC2011-27314 (RAMAS); and XLIM Institute (VIP2013).
Event Title: 17th International Conference on Transparent Optical Networks
Event Type: Other
Event Dates: 2015-07-05 - 2015-07-09
Uncontrolled Keywords: fibre lasers,fibre optics communications,optical security and encryption,Computer Networks and Communications,Electrical and Electronic Engineering,Electronic, Optical and Magnetic Materials
ISBN: 978-1-4673-7880-2
Last Modified: 05 Jan 2024 08:28
Date Deposited: 15 Oct 2015 11:25
Full Text Link: http://ieeexplo ... rnumber=7193390
Related URLs: http://www.scop ... tnerID=8YFLogxK (Scopus URL)
PURE Output Type: Conference contribution
Published Date: 2015
Authors: Krupa, K.
Tonello, A.
Boscolo, S. (ORCID Profile 0000-0001-5388-2893)
Barthélémy, A.
Kermène, V.
Desfarges-Berthelemot, A.
Shalaby, B.M.
Turitsyn, S.K. (ORCID Profile 0000-0003-0101-3834)
Ania-Castañón, J.D.



Version: Accepted Version

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