Glass optical waveguide

Details Glass optical waveguide Glass optical waveguide

2008-05-06

2008-05-06

Healy, Brian (Department: 2883)

Optical waveguides

Planar optical waveguide

C385S015000, C385S039000, C385S123000, C385S124000, C385S125000, C385S126000, C385S127000, C385S128000, C385S130000, C385S131000, C385S132000

Reexamination Certificate

active

07369733

ABSTRACT:
In a glass optical waveguide having a core containing at least one oxide selected from the group of glass-constituting oxides consisting of Bi2O3, Sb2O3, PbO, SnO2and TeO2, large transmission loss of light which occurs when the cross-sectional shape of the core is rectangle, is reduced, and wherein the glass optical waveguide contains at least total 35% in mass % of at least one type of the above glass-constituting oxides, wherein the cross-sectional shape of the core is trapezoidal, among two parallel sides of the trapezoid, a long side is in a substrate side and among four sides constituting the trapezoid, angles of two oblique sides to the long side are each within a range of from 60 to 80°.

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Besley et al, Optical and Quantum Electronics, 2002, vol. 34, No. 4, pp. 317-330.

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