Damping Analysis of Side-polished Fiber Microbeam Resonator Excited Optically

摘要

The paper presents a novel all-optical microresonator structure by utilizing the processed part of the side-polished fiber as sensitive element. We use an analytical model for analyzing the support loss in our structure with flexural vibration. In this model, the flexural vibration of the beam resonator is described using the beam theory. An elastic wave excited by the shear stress and moment of the beam resonator and propagating in the support structure is described through the 2D elastic wave theory. Using the Fourier transform, a computational equation for the support quality factor is obtained. At last, the established novel computational model was simulated by MATLAB and we obtained the very high theoretical Q-factor which will demonstrate the usability and feasibility for this novel all-optical microresonator.