Monolithic mode-selective few-mode multicore fiber multiplexers

Nicolas Riesen*, Simon Gross, John D. Love, Yusuke Sasaki, Michael J. Withford

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

38 Citations (Scopus)
26 Downloads (Pure)


With the capacity limits of standard single-mode optical fiber fast approaching, new technologies such as space-division multiplexing are required to avoid an Internet capacity crunch. Few-mode multicore fiber (FM-MCF) could allow for a two orders of magnitude increase in capacity by using the individual spatial modes in the different cores as unique data channels. We report the realization of a monolithic mode-selective few-mode multicore fiber multiplexer capable of addressing the individual modes of such a fiber. These compact multiplexers operate across the S + C + L telecommunications bands and were inscribed into a photonic chip using ultrafast laser inscription. They allow for the simultaneous multiplexing of the LP01, LP11a and LP11b modes of all cores in a 3-mode, 4-core fiber with excellent mode extinction ratios and low insertion losses. The devices are scalable to more modes and cores and therefore could represent an enabling technology for practical ultra-high capacity dense space-division multiplexing.

Original languageEnglish
Article number6971
Pages (from-to)1-9
Number of pages9
JournalScientific Reports
Publication statusPublished - 1 Aug 2017

Bibliographical note

Copyright the Author(s) 2017. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.


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