Planar light waveguide circuit with landmarks
AssigneeSamsung Electronics Co., Ltd.
InventorsOh-Dal Kwon, Sung-Hyun Lee, Jung-Hwan Cho, Jin-Kyung Choi
Life of this patent
Estimating the term…
Abstract
A planar light waveguide circuit includes a plurality of landmarks arranged on the planar light waveguide circuit at intervals of a specific gap starting from a cut section of the planar light waveguide circuit so as to increase the uniformity of a coupling loss that occurs when connecting the planar light waveguide circuit in alignment with optical fiber blocks, wherein the landmarks are formed onto the planar light waveguide circuit so as to enable an operator to monitor a permissible angle error, and wherein Arabic numerals or specific symbols are marked in association with the landmarks to help the operator distinguish the landmarks.
Claims11
A light waveguide circuit comprising:
- a planar light waveguide including a core and a cladding;
- a plurality of landmarks arranged at opposite ends within the planar light waveguide, each landmark spaced apart from each other at a predetermined interval (t) starting at one end of the planar light waveguide;
- wherein the plurality of said landmarks is operative for selectively cutting one side of the planar light waveguide within a permissible angle error.
A method for aligning a planar light waveguide circuit having a plurality of waveguides to an optical block, comprising the steps of:
- cutting said planar light waveguide circuit to provide a cut section that is perpendicular to the plurality of said waveguides;
- providing an array of landmarks having a predetermined interval (t) starting at one end of said cut section and at the other end of said cut section, said one end of said landmarks is synchronized, in sequence, with said other end of said landmarks;
- identifying an sequence order of each of said landmarks according to predetermined criteria;
- and,
- selectively cutting one side of said planar light waveguide circuit to cover the first landmark of said one end of said planar light wave guide circuit and the first landmark of said other end of said planar light wave guide circuit within a permissible angle error.
Dependencies are inferred from the claim text.