Patent ID: 8116600
Filing Date: 2012-02-14
Classification: B82Y,G02B,G02F

Abstract:
1. An optical phase modulation element comprising: a Plasmon waveguide including a clad made of metal having a complex dielectric constant with a negative real part in a used wavelength and a core made of dielectric material having a complex dielectric constant with a positive real part in the used wavelength; and an optical waveguide connected to the Plasmon waveguide, the optical waveguide including a clad and a core made of dielectric material having a complex dielectric constant with a positive real part, wherein at least part of the core of the Plasmon waveguide and the core of the waveguide is made of the same semiconductor material, and wherein the Plasmon waveguide performs phase-modulation on incident light when a voltage is applied.