Silica based glass waveguide and optical module using the same

Details Silica based glass waveguide and optical module using the same Silica based glass waveguide and optical module using the same

2002-11-14

2008-08-19

Lee, Michael G. (Department: 2876)

Optical waveguides

Planar optical waveguide

C385S128000, C385S123000, C385S124000, C385S132000, C385S014000, C385S024000

Reexamination Certificate

active

07415183

ABSTRACT:
A silica based glass waveguide having almost the same optical characteristics as designed value and an optical module using a silica based glass waveguide having excellent optical characteristics and reduced connecting loss are provided. A silica based glass waveguide is comprising a core waveguide and a clad, a core waveguide is formed rectangular in cross section and of SiO2—TiO2group glass on a synthetic silica glass substrate, and a clad is formed of SiO2—B2O3—P2O5group glass or etc. on a synthetic silica glass substrate and a core waveguide. A synthetic silica glass substrate is formed of pure SiO2and having birefringence quantity less than 10 nm/cm.

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