Patent ID: 7539369
Filing Date: 2009-05-26
Classification: G02B,H01S

Abstract:
1. An optical device comprising: a substrate side waveguide formed on a substrate; a highly reflective surface on a first side of the substrate side waveguide, the highly reflective surface at least substantially extending along an entirety of a length of the first side of the substrate side waveguide; and a plurality of optical elements fixed on the substrate and positioned towards a second side of the substrate side waveguide opposite to the first side of the substrate side waveguide, wherein the substrate side waveguide and an optical element side waveguide formed in each of the plurality of optical elements forms a continuous optical waveguide path, wherein the substrate side waveguide forms a resonator in which an input signal light resonates, the resonator being a multiple ring oscillator having a first ring resonator positioned towards an optical element side of the substrate, a second ring resonator positioned towards an end of the substrate opposite to the optical element side of the substrate, and a third ring resonator positioned between the first ring resonator and the second ring resonator, and wherein the substrate side waveguide comprises: