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A microring feedback bend-based coupling resonant system is proposed and is finite difference time domain (FDTD)-simulated to generate electromagnetically-induced transparency (EIT)-like transmission and mode distribution. The coupling between the cross-section of the waveguides gives rise to EIT-like spectrum. Most of the mode field energy is concentrated in the coupling region of the feedback bend...
We demonstrate a Vernier microring sensor consisting of a traditional cascaded dual microring resonator and an additional measurement range unit. The sensor’s performance is simulated for different concentrations of aqueous solutions of ethylene glycol ($$\hbox {C}_2 \hbox {H}_6 \hbox {O}_2 )$$ C2H6O2) . The theoretical sensitivity of our system is as high as 7386 nm / RIU, an order of magnitude much...
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