In-Situ Investigation of Coupling Between a Fibre and a Slab Waveguide

M. Iztkovich, M. Tur, A. Hardy, N. Croituro

Research output: Contribution to journalArticlepeer-review

Abstract

The mode coupling between a fibre and a slab waveguide was experimentally investigated during the formation of the slab. A thin film has been deposited on a polished fibre close to the core-clad interface. By monitoring the optical transmittance of the fibre during the film deposition the coupling efficiency between the formed slab and the fibre has been studied as a function of the film thickness. Strong attenuation in the fibre output has been observed for thickness values at which the propagation constants of the optical mode in the fibre match those of the slab waveguide.

Original languageEnglish
Pages (from-to)1104-1105
Number of pages2
JournalElectronics Letters
Volume26
Issue number15
DOIs
StatePublished - 1 Sep 1990

Keywords

  • Coupling
  • Optical fibres
  • Waveguides

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