The data of “Research progress on spectral modulation and sensing applications of Bragg-grating-assisted microring resonators”

Table 1 classifies two types of microring structures according to the integration position of gratings, and compares their physical mechanisms, spectral effects, pros and cons of fabrication processes as well as application characteristics, clarifying the essential differences between the two schemes.

Table 2 divides the sensing technologies into two routes of lineshape modulation and FSR expansion based on application requirements, and illustrates their respective principles, solved technical bottlenecks and application scenarios. Table 3 summarizes research achievements of representative devices over the years, listing quantitative indicators including structure types, spectral effects, Q factors, sensitivity, limit of detection and FSR to intuitively reflect technological evolution and performance gaps.