Five-ring hollow-core photonic crystal fiber with 1.8 dB/km loss

M. H. Frosz, J. Nold, T. Weiss, Alessio Stefani, F. Babic, S. Rammler, P. St J Russell

Research output: Contribution to journalJournal articleResearchpeer-review

158 Downloads (Pure)


A 19-cell hollow-core photonic crystal fiber reaching 1.8 ± 0.5 dB/km loss at 1530 nm is reported. Despite expanded corner holes in the first ring adjacent to the core, and only five cladding rings, the minimum loss is close to the previously published record of 1.7 dB/km at a comparable wavelength, achieved in a fiber with seven cladding rings. Since each additional cladding ring requires a significant increase in fabrication time and complexity, it is highly desirable to use as few as possible while still achieving low loss. Modeling results confirm that further reducing cladding deformations would yield only a small decrease in loss. This demonstrates that loss comparable to the previously demonstrated lowest-loss bandgap fibers can be achieved with fiber structures that are significantly simpler and faster to fabricate. © 2013 Optical Society of America.
Original languageEnglish
JournalOptics Letters
Issue number13
Pages (from-to)2215-2217
Publication statusPublished - 2013
Externally publishedYes


  • Atomic and Molecular Physics, and Optics
  • Bandgap fibers
  • Fabrication time
  • Fiber structures
  • Hollow core photonic crystal fiber
  • Minimum loss
  • Modeling results
  • Optical fiber fabrication
  • Photonic crystal fibers
  • Cladding (coating)

Fingerprint Dive into the research topics of 'Five-ring hollow-core photonic crystal fiber with 1.8 dB/km loss'. Together they form a unique fingerprint.

Cite this