Abstract: The lasing mode in a 3D confined Fabry-Perot microcavity with an optically thin dielectric aperture is analyzed using a quantitative model which includes accurately the boundary conditions of the cavity reflectors. The model can be applied to both guiding and antiguiding phenomena. Self- consistent calculation of the lasing field gives the eigenmode field profile, frequency, and threshold susceptibility. The analysis illustrates that the frequency is related to the lateral field distribution which is set by the lateral optical confinement of the thin dielectric aperture, the mirror reflectivity and the cavity length of the Fabry-Perot microcavity. The eigenmode frequency can be related to its loss rate. !12
展开▼
