Demonstration of uniform multicore fiber Bragg gratings

Emma Lindley, Seong Sik Min, Sergio Leon-Saval, Nick Cvetojevic, Jon Lawrence, Simon Ellis, Joss Bland-Hawthorn

Research output: Contribution to journalArticlepeer-review

51 Citations (Scopus)


Fiber Bragg gratings in multicore fibers have significant potential as compact and robust filters for research and commercial applications. With the aid of an innovative, flat-fielded Mach-Zehnder interferometer, we demonstrate deep (>30 dB) narrow (100pm at 3 dB; 90pm at 10 dB) notches in the outer 6 cores of a 7-core fiber at a constant wavelength ( ± 15pm). This is a crucial step in the development of FBGs operating within multimode fibers that carry an arbitrary number of spatial modes.

Original languageEnglish
Pages (from-to)31575-31581
Number of pages7
JournalOptics Express
Issue number25
Publication statusPublished - 15 Dec 2014
Externally publishedYes


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