Slow-Light Enhanced Second Harmonic Generation in Lithium Niobate Photonic Crystal Waveguides

  • Zaineb Gharsallah
  • Makni Sana
  • Monia Najjar
  • Vijay Janyani
Conference paper
Part of the Lecture Notes in Electrical Engineering book series (LNEE, volume 472)


In this research study, we propose a slow-light-based photonic crystal waveguide consisting of a combination of circular and elliptic airholes with a background material of lithium niobate LiNbO3 (refractive index n = 2.211). By modifying the radii of the closest row to the waveguide in each side, we demonstrate a high value of normalized delay-bandwidth product, equal to 0.60. Using finite-difference time-domain method (FDTD), a significant increase of second harmonic generation efficiency of about 0.14 at a moderate power is observed when analyzing the nonlinear performance of the designed slow-light structure.


Slow light NDBP Photonic crystal waveguide Nonlinear effects Second harmonic generation 


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Copyright information

© Springer Nature Singapore Pte Ltd. 2018

Authors and Affiliations

  • Zaineb Gharsallah
    • 1
    • 3
  • Makni Sana
    • 1
  • Monia Najjar
    • 1
    • 2
  • Vijay Janyani
    • 3
  1. 1.National Engineering School of Tunis Communications Systems Laboratory (SysCom)University of Tunis El ManarArianaTunisia
  2. 2.Higher Institute of Computer Science of El Manar (ISI)University of Tunis El ManarArianaTunisia
  3. 3.Department of Electronics & CommunicationMalaviya National Institute of TechnologyJaipurIndia

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