Core crosstalk in ordered imaging fibre bundles

Helen E. Parker, Antonios Perperidis, James M. Stone, Kevin Dhaliwal, Michael G. Tanner

Research output: Contribution to journalArticle

Abstract

Coherent fibre bundles are widely used for imaging.
Commonly, disordered arrays of randomly sized fibre
cores avoid proximity between like-cores which would
otherwise result in increased core crosstalk and a negative
impact on imaging. Recently, stack-and-draw fibre
manufacture techniques have been used to produce
fibres with a controlled core layout to minimise core
crosstalk. However, one must take manufacturing considerations
into account during stack-and-draw fibre
design in order to avoid impractical or unachievable
fabrication. This comes with a set of practical compromises,
such as using only a small number of different
core sizes. Through characterisation of core crosstalk
patterns, this Letter aims to aid the understanding of
crosstalk limitations imposed by such compromises in
the core layout made for ease of fabrication.
Original languageEnglish
JournalOptics Letters
Publication statusAccepted/In press - 17 Oct 2020

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