Patent ID: 7551342
Filing Date: 2009-06-23
Classification: G02F

Abstract:
1. An optical frequency comb generator comprising: oscillation means for oscillating a modulating signal of a preset frequency; resonator means composed of a light incident side reflecting mirror and a light exiting side reflecting mirror, parallel to said light incident side reflecting mirror, and configured for propagating light incident via said light incident side reflecting mirror in the outward path direction or in the backward path direction for causing the resonant state of the incident light; and optical modulating means arranged between said light incident side reflecting mirror and the light exiting side reflecting mirror, for phase-modulating the light resonant in said resonator means, responsive to said modulating signal supplied from said oscillation means, for generating a plurality of sidebands spaced apart from one another by an interval corresponding to the frequency of said modulating signals, with the frequency of the incident light as center; said optical modulating means including at least a light waveguide path, formed on a substrate exhibiting an electro-optical effect, and an electrode formed on said light waveguide path for propagating said modulating signal, oscillated by said oscillation means, in the outward path direction or in the backward path direction, said optical modulating means phase-modulates the light propagated in said outward path direction by said modulating signal propagated in said outward path direction, while phase-modulating the light propagated in said backward path direction by said modulating signal propagated in said backward path direction.