4.7 Article

Sensors at Your Fibre Tips: A Novel Liquid Crystal-Based Photonic Transducer for Sensing Systems

Journal

JOURNAL OF LIGHTWAVE TECHNOLOGY
Volume 31, Issue 17, Pages 2940-2946

Publisher

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/JLT.2013.2274455

Keywords

Liquid crystal devices; optical fiber transducers; voltage measurement

Funding

  1. Australian government
  2. Smart Digital Optics
  3. Hong Kong University of Science and Technology through the Australian Research Council (ARC)
  4. ARC-Linkage research funding program
  5. HKUST [CERG 612409, CERG 612310]
  6. Russian Foundation for Basic Research [12-03-90021-Bel_a, 13-02-00598_a, 13-00-90487-Ukr f a]

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Recent advances in both nano-fabrication and nanomaterials open up rich new avenues in the optical sensing area. Using nano-grid electrodes, nanometer-scale photo-alignment layers and deformed helix ferro-electric liquid crystals with a sub-wavelength helix pitch of 150 nm, we have realised a fully integrated polarisation-based photonic transducer which exhibits fast response to an applied voltage/electric field, excellent linearity and allows multiplexing using standard, low cost telecom optical fibers.

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