Electrical transverse wave (TE) polarized light transmission waveguide polarizer

摘要

1. The technical field to which the invention described in the claims belongs;Semiconductor device manufacturing method;2. Technical challenges to be solved by the invention;In the conventional TE-pass polarizer which forms the optical waveguide by poling in the horizontal direction, since the direction of the poling electric field is not uniformly formed in the horizontal direction, there is a problem that the polarization extinction ratio which is the most important among the characteristics of the polarizer is lowered.;3. The point of the solution of the invention;The present invention provides an electric transverse wave (TE) polarized-light passage optical waveguide polarizer in which polarized extinction ratio is improved by poling both side portions of an optical waveguide in a vertical direction.;4. Important Uses of the Invention;Used in electrical transverse wave (TE) pass optical waveguide polarisers.