Core-to-core uniformity improvement in multi-core fiber Bragg gratings

Emma Lindley, Seong Sik Min, Sergio Leon-Saval, Nick Cvetojevic, Nemanja Jovanovic, Joss Bland-Hawthorn, Jon Lawrence, Itandehui Gris-Sanchez, Tim Birks, Roger Haynes, Dionne Haynes

Research output: Chapter in Book/Report/Conference proceedingConference proceeding contributionpeer-review

14 Citations (Scopus)


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.

Original languageEnglish
Title of host publicationAdvances in optical and mechanical technologies for telescopes and instrumentation
EditorsRamón Navarro, Colin R. Cunningham, Allison A. Barto
Place of PublicationBellingham, Washington
Number of pages9
ISBN (Electronic)9780819496195
Publication statusPublished - 2014
Externally publishedYes
EventAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation - Montreal, Canada
Duration: 23 Jun 201427 Jun 2014

Publication series

NameProceedings of SPIE
ISSN (Print)0277-786X


OtherAdvances in Optical and Mechanical Technologies for Telescopes and Instrumentation


  • Astrophotonics
  • Beam propagation
  • Experimental optics
  • Fiber Bragg gratings
  • Multi-core fiber


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