Research On Slow Light Effect Based On Microring Resonators Array

With the rapid development of the information industry,microring resonators play an important role in today's silicon based optoelectronics.Microring resonator arrays have become a hot research topic because they can achieve better optical delay.Based on the basic principle of microring resonator,the model of single waveguide single microring resonator,double waveguide single microring resonator and single waveguide double microring resonator is established by using the transmission matrix method.The slow light effect of the three basic micro ring resonators is compared and analyzed,and the slow propagation of the micro ring resonator is obtained.The conditions and advantages of the light effect.Secondly,the transmission matrix method is used to obtain the spectrum function of the downloader and the output end of the microring resonator array.The Matlab simulation tool is used to simulate the output spectrum of the direct end.It is obtained that the distance between the adjacent microring centers is ?r in the microring resonator with the unequal radius of the microring,and the spectrum of the through end is the resonator band.The slow light effect of the microring resonator array is the best when the overlapping frequency band is overlapped.On the basis of the coupled resonator induced transparency effect in the microring resonator array,the conditions for the constructive interference and destructive interference of the microring resonator array were deduced,and the channel of coupled resonator induced transparency was changed by setting the coherence distance between the adjacent microrings in the array,thereby this changed the slow light channel of the microring resonator array.In order to make the slow light channel of the microring resonator array can be changed flexibly,based on the microring resonator array three microloop structure,the influence of the refractive index of the tuned single microloop or the refractive index of the tuned double microloop on the slow light effect is analyzed and studied.Then,according to the coherent distance between the adjacent Microrings of the microring resonator array and the additional phase shift,the influence of the additional phase shift on the slow light effect in the microring resonator array is analyzed and studied.The dynamic tuning of the slow light channel in the microring resonator array is realized,and the additional phase shift is used to simulate and analyze the additional phase shift after the additional phase shift.The slow light effect in the dense wavelength division multiplexer realizes the dynamic tuning of the slow channel wavelength and the number of slow optical channels in the dense wavelength division multiplexer,and enhances the flexibility of the dense wavelength division multiplexer.Finally,using the additional phase shift to tune the slow light effect of the Mach Zehnder interferometer filter,the slow light channel with better performance is obtained at the cross end of the Mach Zehnder interferometer filter,and the effect of the related parameters on its slow light effect is analyzed.The method of additional phase shift can dynamically adjust optical delay channel,which enhances the flexibility of optical devices,and makes slow light devices more widely applied.