Patent · US Active

Photonic bandgap fibers

US7970248B2 · kind B2 · utility

16Cited by
6References
29Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 16, 2010
Grant dateJun 28, 2011
Priority date—
Expiry dateJul 16, 2030

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B6/4206
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

Included among the many structures described herein are photonic bandgap fibers designed to provide a desired dispersion spectrum. Additionally, designs for achieving wide transmission bands and lower transmission loss are also discussed. For example, in some fiber designs, smaller dimensions of high index material in the cladding and large core size provide small flat dispersion over a wide spectral range. In other examples, the thickness of the high index ring-shaped region closest to the core has sufficiently large dimensions to provide negative dispersion or zero dispersion at a desired wavelength. Additionally, low index cladding features distributed along concentric rings or circles may be used for achieving wide bandgaps.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.