Loading patent…
AssigneeThomson-CSF
InventorsJean Claude Dubois, Maryse Gazard, Claude Duchesne, Jean Claude Lavenu
Estimating the term…
A method of manufacturing an electron-sensitive resin capable of constituting the material of an optical waveguide having a width of the order of 1 micron and transmission loss lower than 2 db/cm, is provided. The method comprises, carried out under conditions of extremely high purity, the hydrolysis of trichlorosilane, to give phenylsilanetriol, the preparation of a benzenic collodion of this product and then the polymerization in the hot state of a phenylsilanetriol solution, and the conversion of the resultant polymer into the polyphenylsiloxanol which is fractionated by successive extremely fine filtering operations carried out upon a solution of this product, into batches having different degrees of polymerization, each of them fitting a typical optical waveguide.
A method of preparing an electrosensitive resin which comprises:
In an optical wave guide integrated into a substrate and formed in a resin, the improvement which comprises an electrosensitive resin prepared by the process which comprises:
Dependencies are inferred from the claim text.