Fig. 1. Schematic diagram of the architecture for large-scale sensing

Fig. 2. Schematic diagram of the integrated optical microcavity structure for sensing applications

Fig. 3. Research on microring cavity array for sensing applications^{［54-56，58-63］}

Fig. 4. Sensing array based on one-dimensional and two-dimensional photonic crystal cavities^{［66，77-81］}

Fig. 5. Research on highly integrated sensing systems^［88-92］