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Two-dimensional optical power distribution of side-out-coupled radiation from tilted FBGs in multimode fibre

  • K. Zhou
  • , G. Simpson
  • , Xianfeng Chen
  • , L. Zhang
  • , I. Bennion
    • Aston University

    Research output: Contribution to journalArticlepeer-review

    Abstract

    Two-dimensional optical power distribution of the out-coupled radiation from UV‐inscribed tilted fibre Bragg gratings (TFBGs) in multimode fibre (MMF) has been side-detected with high spatial/spectral resolution, showing a near-identical radiation mode profile to that measured from the fibre-end detection method. A comparative investigation of the radiation characteristics of TFBGs fabricated in singlemode fibre (SMF) and MMF clearly indicates that the radiation out-coupling is stronger and spatially more confined in MMF. The unique spatial-to-spectral encoding property of the coupling mechanism offers potential application in low-cost WDM devices.
    Original languageEnglish
    Pages (from-to)651-653
    JournalElectronics Letters
    Volume39
    Issue number8
    DOIs
    Publication statusPublished - 17 Apr 2003

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