Patent ID: 6946238
Filing Date: 2005-09-20
Classification: G02B,G02F,H01S

Abstract:
1. A method for manufacturing an optical waveguide device, comprising in order the steps of: a. depositing a lower cladding layer; b. coating a photoresist layer directly on the lower cladding layer; c. patterning the photoresist layer to create channels; d. etching the lower cladding layer to form undercut channels that undercut the photoresist layer; e. depositing a core layer, wherein a first portion of the core layer is deposited inside the channels and a second portion overlays the patterned photoresist layer; f. removing the patterned photoresist layer and the second portions of the core layer overlaying the patterned photoresist layer; and g. depositing an upper cladding layer.