Study on the characteristics of self-coupling resonator based on microring

A self-coupled microloop resonant structure which can achieve transparency effect is proposed on the basis of the self-coupled resonator and the microloop resonator.The transmission function expression is derived by the model of scattering matrix, and the transmission spectrum is obtained at last.The results show that the structure can generate coupled-resonator-induced transparency(CRIT)effect.The transparent effect gradually decrease with the decrease of coupling coefficient k and transmission coefficient a. With the increase of R, the transparent effect is almost invariability, but the resonant wavelength gradually increase.Therefore, the transparency effect can be enhanced and the transparent frequency or wavelength that we need can be achieved by changing these three parameters.This study provides some guiding and referential value in the CRIT effect of the microloop resonator.