Direct measurement of core profile diffusion and ellipticity in fused-taper fibre couplers using atomic force microscopy

S. T. Huntington*, S. J. Ashby, M. C. Elias, J. D. Love

*Corresponding author for this work

    Research output: Contribution to journalArticlepeer-review

    6 Citations (Scopus)

    Abstract

    The geometrical shape and refractive index profile of the cores of fused-taper fibre couplers made by the heating, fusing and tapering technique have been measured to an accuracy of better than 10 nm. This approach involves precision cleaving, hydrofluoric acid etching and atomic force microscope (AFM) measurement. Results reveal that the core profile and cross-sectional geometry along the taper differ significantly from the normal assumption of scaled circular cores.

    Original languageEnglish
    Pages (from-to)121-123
    Number of pages3
    JournalElectronics Letters
    Volume36
    Issue number2
    DOIs
    Publication statusPublished - 20 Jan 2000

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