Optical waveguides – Planar optical waveguide – Thin film optical waveguide
Patent
1990-03-16
1991-10-08
Lee, John D.
Optical waveguides
Planar optical waveguide
Thin film optical waveguide
430 97, 385143, 385145, G02B 610
Patent
active
050548727
ABSTRACT:
A structure comprising a layer of polymeric material containing epoxy groups having preselected regions of different degrees of polymerization and different refractive indices; and a method for forming a structure comprising a layer of polymeric material containing epoxy groups having preselected regions of differing degrees of polymerization and differing refractive indices which comprises providing a polymeric material containing epoxy groups on a support and selectively modifying the refractive index in said material.
REFERENCES:
patent: 4046567 (1977-09-01), Pye
patent: 4311726 (1982-01-01), Hacker et al.
patent: 4593975 (1986-06-01), Nakauchi et al.
patent: 4645297 (1987-02-01), Yoshihara et al.
Fan Bunsen
Flagello Donis G.
Gelorme Jeffrey D.
Oprysko Modest M.
Speth Albert
IBM Corporation
Lee John D.
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