Cladding defects in hollow core fibers for surface mode suppression and improved birefringence

Mattia Michieletto, J. K. Lyngso, Jesper Lægsgaard, Ole Bang

Research output: Contribution to journalJournal articleResearchpeer-review

510 Downloads (Pure)

Abstract

We demonstrate a novel polarization maintaining hollow-core photonic bandgap fiber geometry that reduces the impact of surface modes on fiber transmission. The cladding structure is modified with a row of partially collapsed holes to strip away unwanted surface modes. A theoretical investigation of the surface mode stripping is presented and compared to the measured performance of four 7-cells core fibers that were drawn with different collapse ratio of the defects. The varying pressure along the defect row in the cladding during drawing introduces an ellipticity of the core. This, combined with the presence of antiresonant features on the core wall, makes the fibers birefringent, with excellent polarization maintaining properties. (C) 2014 Optical Society of America
Original languageEnglish
JournalOptics Express
Volume22
Issue number19
Pages (from-to)23324-23332
ISSN1094-4087
DOIs
Publication statusPublished - 2014

Keywords

  • OPTICS
  • PHOTONIC BANDGAP FIBERS
  • CRYSTAL FIBER
  • DESIGN

Fingerprint Dive into the research topics of 'Cladding defects in hollow core fibers for surface mode suppression and improved birefringence'. Together they form a unique fingerprint.

Cite this