Dual core photonic crystal fibers (PCF) with special dispersion properties
US7174078B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 11, 2002 |
| Grant date | Feb 6, 2007 |
| Priority date | — |
| Expiry date | Oct 26, 2022 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/29377
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An optical fiber for transmitting light, said optical fiber having an axial direction and a cross section perpendicular to said axial direction, said optical fiber comprising: (1) a first core region comprising a first core material having a refractive index Nco,1; (2) a microstructured first cladding region surrounding the first core region, said first cladding region comprising a first cladding material and a plurality of spaced apart first cladding features or elements that are elongated in the fiber axial direction and disposed in the first cladding material, said first cladding material having a refractive index Ncl,1 and each said first cladding feature or element having a refractive index being lower than Ncl,1, whereby a resultant geometrical index Nge,cl, 1? of the first cladding region is lowered compared to Ncl,1; (3) a second core region surrounding said first cladding region, said second core region comprising a second core material having a refractive index Nco,2, and (4) a second cladding region surrounding the second core region, said second cladding region comprising a second cladding material having a refractive index Ncl,2, wherein the first core material, the fi…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.