Lotus Shaped Negative Curvature Hollow Core Fiber with 10.5 dB/km at 1550 nm Wavelength

Mubassira Banu Syed Nawazuddin, Natalie V. Wheeler, John Hayes, Seyad Reza Sandoghchi, Tom Bradley, Gregory Jasion, Radan Slavik, David J. Richardson, Francesco Poletti

Research output: Contribution to journalArticlepeer-review

27 Citations (SciVal)


We present a novel Lotus shaped negative curvature antiresonant hollow core fiber with the potential for low loss and very wide bandwidth. A minimum loss of ~10 dB/km at 1550 nm and less than 100 dB/km over a bandwidth of ~650 nm is demonstrated, with effectively single mode behaviour over lengths of a few tens of meters. We demonstrate power penalty free 10.5-Gbit/s data transmission through an 86 m length of fiber at both O and C telecom bands. The fiber macro bend sensitivity has also been tested, which is relevant for telecom as well as for other applications including beam delivery and gas based sensing. The bend loss is found to be below 0.2 dB/m for bend radii down to 8 cm at wavelengths away from the short wavelength edge of the transmission band.

Original languageEnglish
Number of pages6
JournalJournal of Lightwave Technology
Early online date25 Dec 2017
Publication statusE-pub ahead of print - 25 Dec 2017


  • Fiber optics communications
  • hollow core optical fibers
  • low latency
  • microstructured optical fibers

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


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