Photonic bandgap fiber

Optical waveguides – Optical fiber waveguide with cladding

Reexamination Certificate

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C385S126000, C385S127000

Reexamination Certificate

active

08041170

ABSTRACT:
A photonic bandgap optical fiber and a method of manufacturing said fiber is disclosed. The photonic bandgap fiber comprises a core region surrounded by cladding region. The cladding region includes a background optical material having a first refractive index, and elements of optical material having a second refractive index higher than said first refractive index. The elements are arranges periodically in the background optical material. At the drawing temperature of the fibered, the background optical material has a viscosity lower than the viscosity of the optical material of the elements.

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