7 August 2014 Core-to-core uniformity improvement in multi-core fiber Bragg gratings
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Multi-core fiber Bragg gratings (MCFBGs) will be a valuable tool not only in communications but also various astronomical, sensing and industry applications. In this paper we address some of the technical challenges of fabricating effective multi-core gratings by simulating improvements to the writing method. These methods allow a system designed for inscribing single-core fibers to cope with MCFBG fabrication with only minor, passive changes to the writing process. Using a capillary tube that was polished on one side, the field entering the fiber was flattened which improved the coverage and uniformity of all cores.
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Emma Lindley, Emma Lindley, Seong-Sik Min, Seong-Sik Min, Sergio Leon-Saval, Sergio Leon-Saval, Nick Cvetojevic, Nick Cvetojevic, Nemanja Jovanovic, Nemanja Jovanovic, Joss Bland-Hawthorn, Joss Bland-Hawthorn, Jon Lawrence, Jon Lawrence, Itandehui Gris-Sanchez, Itandehui Gris-Sanchez, Tim Birks, Tim Birks, Roger Haynes, Roger Haynes, Dionne Haynes, Dionne Haynes, "Core-to-core uniformity improvement in multi-core fiber Bragg gratings", Proc. SPIE 9151, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation, 91515F (7 August 2014); doi: 10.1117/12.2055623; https://doi.org/10.1117/12.2055623

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