• DocumentCode
    644902
  • Title

    THz Bragg gratings by CO2 laser inscription and their application to monitoring of paper quality

  • Author

    Guofeng Yan ; Chinifooroshan, Y. ; Mikulic, Predrag ; Bock, Wojtek J. ; Skorobogatiy, M.

  • Author_Institution
    Ecole Polytech. de Montreal, Montreal, QC, Canada
  • fYear
    2013
  • fDate
    1-6 Sept. 2013
  • Firstpage
    1
  • Lastpage
    2
  • Abstract
    We report fabrication of THz fiber Bragg gratings (TFBG) using CO2 laser inscription on subwavelength step-index polymer fibers. A TFBG with 48 periods shows a ~4 GHz-wide stop band and ~15 dB transmission loss. The simulated and experimental results demonstrate potential of such gratings in paper thickness monitoring, with experimental spectral sensitivities of ~ -0.67 GHz / 10 μm.
  • Keywords
    Bragg gratings; gas lasers; laser materials processing; optical fibres; paper making; polymer fibres; CO2; CO2 laser inscription; THz fiber Bragg gratings; paper quality monitoring; paper thickness monitoring; spectral sensitivities; subwavelength step-index polymer fibers; transmission loss; Atmospheric measurements; Monitoring; Particle measurements;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Infrared, Millimeter, and Terahertz Waves (IRMMW-THz), 2013 38th International Conference on
  • Conference_Location
    Mainz
  • Type

    conf

  • DOI
    10.1109/IRMMW-THz.2013.6665874
  • Filename
    6665874
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=644902