Micro-ring resonator using 3x3 Multimode Interference (MMI) couplers or 3x3 planar directional coupler is a promising component for a new generation of functional optic devices such as switches, modulators and laser oscillators, which employ smaller applied voltages for control. In order to achieve these functional devices, means for voltage control of the coupling between the waveguides and the resonator is required. This paper presents a method of controlling the coupling coefficients to meet the critical coupling of 3x3 micro-ring resonator applied to optical switching, modulation and oscillation.
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Micro-ring resonator using 3x3 Multimode Interference (MMI) couplers or 3x3 planar directional coupler is a promising component for a new generation of functional optic devices such as switches, modulators and laser oscillators, which employ smaller applied voltages for control. In order to achieve these functional devices, means for voltage control of the coupling between the waveguides and the resonator is required. This paper presents a method of controlling the coupling coefficients to meet the critical coupling of 3x3 micro-ring resonator applied to optical switching, modulation and oscillation.
