FBG-Based Multidimensional QKD

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


In this paper, we propose several FBG-based both weak coherent state and entanglement assisted multidimensional QKD (MQKD) protocols with mutually unbiased bases (MUBs) derived from the complex Hadamard matrices. We also propose how to implement them by using FBGs with orthogonal impulse responses. The proposed MQKD protocols significantly outperform the conventional two-base QKD protocols, and impose less stringent bandwidth requirements compared to multidimensional time-frequency (t-f) protocols. The proposed FBG-based protocols are capable of simultaneously achieving unprecedented spectral efficiency and secret-key rates (SKRs) in long-distance quantum communication.

Original languageEnglish (US)
Title of host publication2018 20th International Conference on Transparent Optical Networks, ICTON 2018
PublisherIEEE Computer Society
ISBN (Electronic)9781538666043
StatePublished - Sep 26 2018
Event20th International Conference on Transparent Optical Networks, ICTON 2018 - Bucharest, Romania
Duration: Jul 1 2018Jul 5 2018

Publication series

NameInternational Conference on Transparent Optical Networks
ISSN (Electronic)2162-7339


Other20th International Conference on Transparent Optical Networks, ICTON 2018


  • entanglement assisted MQKD protocols
  • fiber Bragg gratings (FBGs)
  • multidimensional QKD (MQKD)
  • quantum key distribution (QKD)
  • weak coherent state-based MQKD protocols

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Electronic, Optical and Magnetic Materials


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