METHOD AND APPARATUS FOR MODULATING AN OPTICAL BEAM WITH A RING RESONATOR HAVING A CHARGE MODULATED REGION

摘要

An apparatus and method for modulating an optical beam by modulating charge in ring resonator to modulate a resonance condition of the ring resonator. In one embodiment, an apparatus (101) according to embodiments of the present invention includes a ring resonator (107) having a resonance condition disposed in semiconductor material. An input optical waveguide (105) disposed in the semiconductor material is optically coupled to the ring resonator. An output optical waveguide (109) is disposed in the semiconductor material and is optically coupled to the ring resonator. A charge modulated region (121) is disposed in the ring resonator and the charge modulated region is adapted to be modulated to adjust a resonance condition of the ring resonator.