• DocumentCode
    1559036
  • Title

    Strong 157 nm F2-laser photosensitivity-locking of hydrogen-loaded telecommunication fibre for 248 nm fabrication of long-period gratings

  • Author

    Chen, K.P. ; Wei, X. ; Herman, P.R.

  • Author_Institution
    Dept. of Electr. & Comput. Eng., Toronto Univ., Ont., Canada
  • Volume
    38
  • Issue
    1
  • fYear
    2002
  • fDate
    1/3/2002 12:00:00 AM
  • Firstpage
    17
  • Lastpage
    19
  • Abstract
    Strong (>20 dB) long-period fibre gratings were fabricated by combining F2-laser photosensitivity-locking of hydrogen-soaked telecommunication fibre and KrF-laser grating formation. The 157 nm pretreatment permanently enhances the fibre photosensitivity response to the low-energy 248 nm photons. Thermal annealing at 120°C for 24 h improves the grating stability without diminishing the enhancement
  • Keywords
    Bragg gratings; annealing; hydrogen; laser materials processing; optical fibre fabrication; 120 degC; 157 nm; 24 h; 248 nm; F2; KrF; KrF-laser grating formation; fibre-Bragg-grating index modulation; grating stability; hydrogen-loaded telecommunication fibre; hydrogen-soaked telecommunication fibre; long-period grating fabrication; low-energy 248 nm photons; pretreatment; strong 157 nm F2-laser photosensitivity-locking; thermal annealing;
  • fLanguage
    English
  • Journal_Title
    Electronics Letters
  • Publisher
    iet
  • ISSN
    0013-5194
  • Type

    jour

  • DOI
    10.1049/el:20020009
  • Filename
    977532