| In recent years, because of the irreplaceable applications of the structure ofcoupled resonators in the field of all optical communication, high precisionsensors and interferometer and quantum optics, the coupled resonators based onfiber or silicon are attracting increasing attention. On one hand, fiber coupledresonator has become a main method when it is used in optical sensors, such asSagnac rotation sensors, biochemical sensors and temperature sensors, because ofits advantages of small size, against electromagnetic interference, and highprecision. Secondly, in current fiber communication network, one of the maindrawbacks is its slow rate of photoelectric conversion, so all opticalcommunication network is the only choice of future communication method, andcoupled resonator structure can be the main component of all opticalcommunication networks. Finally, quantum optics have been proved to be themain principle in quantum computer, quantum cipher and quantumcommunication, and it can only be used by the means of silicon based coupledresonators.Firstly, in this article, we focused on the methods to enhance and dynamicallycontrol the Q factor of the fiber coupled resonators. We review the progress ofthese two aspects at home and abroad. What’s more, we introduced the mainmethods to calculate the optical field transmission in the coupled resonators.Secondly, by the method of transmission matrix, we simulate there methods toenhance and dynamically control the Q factor of the coupled resonators. Thesemethods are compensating the loss of the coupled resonator, adding structuredispersion in the resonator and using different structure of resonators respectively.We also prove that using the new structure we proposed in the sensing field canget a higher precision.Thirdly, by constructing the experimental platform, we test and verify themethod to enhance the Q factor of the coupled resonator. By the result we get, wecan see that the simulation of the theory is correct. |
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