Microstructured optical fibre
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United States of America Patent
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Apr 29, 2008
Grant Date -
Oct 26, 2006
app pub date -
Mar 31, 2003
filing date -
Mar 31, 2003
priority date (Note) -
Expired
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Abstract
A microstructured optical fiber has a core region with a material having a refractive index n.sub.co and a microstructured region surrounding the core region with a background material having a refractive index n.sub.m which is lower than the refractive index n.sub.co. The microstructured region has a plurality of microstructures having a refractive index different from the refractive index n.sub.m, wherein the distance .DELTA..sub..phi. between the centers of any couple of adjacent microstructures is at least equal to about .lamda..sub.p and not higher than about 1.5.lamda..sub.p, wherein .lamda..sub.p is the spatial variation length of the electric field intensity in the microstructured region.
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