POINT-BY-POINT FEMTOSECOND LASER INSCRIBED STRUCTURES IN OPTICAL FIBRES AND SENSORS USING THE SAME

摘要

An optical fiber or waveguide having a core and a cladding, the fiber/waveguide including a modified region or regions with a modified optical property that differs from the surrounding optical fiber/waveguide, wherein the cross sectional area of the modified region(s) is considerably smaller than the cross sectional area of the core of the fiber or waveguide.