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

K. Krupa, A. Tonello, S. Boscolo*, A. Barthélémy, V. Kermène, A. Desfarges-Berthelemot, B.M. Shalaby, S.K. Turitsyn, J.D. Ania-Castañón

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

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.

Original languageEnglish
Title of host publication17th International Conference on Transparent Optical Networks (ICTON 2015)
EditorsMarek Jaworski, Marian Marciniak
Place of PublicationWarsaw (PL)
PublisherIEEE
Number of pages4
ISBN (Print)978-1-4673-7880-2
DOIs
Publication statusPublished - 2015
Event17th International Conference on Transparent Optical Networks - Budapest, Hungary
Duration: 5 Jul 20159 Jul 2015

Conference

Conference17th International Conference on Transparent Optical Networks
Abbreviated titleICTON 2015
CountryHungary
CityBudapest
Period5/07/159/07/15
Other17th International Conference on Transparent Optical Networks (ICTON 2015) and 7th Sub-Wavelength Photonics Conference (SWP 2015) and 13th Colloquium on Microwave Communications (MICROCOLL 2015)

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Bibliographical note

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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).

Keywords

  • fibre lasers
  • fibre optics communications
  • optical security and encryption

Cite this

Krupa, K., Tonello, A., Boscolo, S., Barthélémy, A., Kermène, V., Desfarges-Berthelemot, A., Shalaby, B. M., Turitsyn, S. K., & Ania-Castañón, J. D. (2015). Radio-frequency spectrum coding in ultra-long fibre laser based cryptography. In M. Jaworski, & M. Marciniak (Eds.), 17th International Conference on Transparent Optical Networks (ICTON 2015) [Tu.A1.2] IEEE. https://doi.org/10.1109/ICTON.2015.7193390