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

K. Zhou*, G. Simpson, X. Chen, L. Zhang, I. Bennion

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

Two-dimensional optical power distribution of the out-coupled radiation from UV-inscribed tilted fibre Bragg gratings (TFBG) 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
Article number7616761
Pages (from-to)651-653
Number of pages3
JournalElectronics letters
Volume39
Issue number8
DOIs
Publication statusPublished - 17 Apr 2003

Keywords

  • 2D optical power distribution
  • side-out-coupled radiation
  • tilted FBGs
  • multimode fibre
  • UV-inscribed FBGs
  • fibre Bragg gratings
  • high spatial resolution
  • high spectral resolution
  • radiation characteristics
  • spatial-to-spectral encoding property
  • low-cost WDM devices
  • Bragg gratings
  • optical communication equipment
  • optical fibres
  • optical signal detection
  • wavelenght division multiplexing

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