Patent ID: 9207469
Filing Date: 2015-12-08
Classification: G02F,Y02E

Abstract:
1. An athermal optical modulator comprising: a waveguide; a ring resonator configured to receive light input from the waveguide and output modulated light to the waveguide, the ring resonator including doping regions sequentially stacked in a horizontal direction on an insulating layer, the doping regions including, a first contact connected to the p+ doping region located on one side of the ridge unit and a second contact connected to the n+ doping region located on the other side of the ridge unit, the first contact and the second contact forming paths for applying electricity to the ring resonator to form an electric field in the ring resonator; a polymer layer covering the ridge unit; and a protection layer covering the ring resonator on the insulating layer, wherein the first contact and the second contact fill vias in the protection layer that expose the p+ doping region and the n+ doping region, and wherein the first contact and the second contact include a metal.