Reconfigurable and compact reversible channel multiplexers using Si3N4 based optical microring resonator

The paper presents the novel all-optical 2 × 1 and 4 × 1 reversible multiplexer using the optical microring resonator (OMRR). The numerical modeling of the Silicon Nitride (Si3N4)-based OMRR has been done and employed to design the reversible multiplexers. The proposed reversible multiplexers are validated through MATLAB results. The desired figure of merits like extinction ratio (ER) is 20.29 dB, amplitude modulation (AM) is 0.71 dB, and the contrast ratio (CR) is 19.54 dB of designs obtained through simulation prove the high performance and practical realization of the proposed models. •This manuscript demonstrates a novel technique to implement an all optical channel multiplexer using an optical microring resonator.•This silicon nitride-based MRR is modulated using an optical pumping signal which ultimately helps to achieve the optical switching through the constructed device using its nonlinear properties.•The optical signal reversible multiplexer using a microring resonator is a unique method to implement optical network.•This multiplexer can be further cascaded to design complex optical processor and routers.