Patent ID: 8225482
Filing Date: 2012-07-24
Classification: G02B,G11B,Y10T

Abstract:
1. A manufacturing method of a waveguide comprising: (a) forming a metal layer of a predetermined size on a substrate; (b) forming a lower clad layer on the structure made in the step (a) in order to completely cover said metal layer; (c) forming a core layer of a predetermined size on said lower clad layer at the location corresponding to said metal layer; and (d) forming an upper clad layer on the structure made in the step (c) in order to completely cover said core layer, wherein a thickness of said metal layer is formed to be about 100 nm thicker than a skin depth, wherein the skin depth comprises a depth to which an effect that a current becomes more concentrated to a surface of a conductor when a frequency becomes higher follows, and wherein the skin depth δ is represented as where, ρ is resistivity, ω=2πf (f: frequency) and μ=4π×10