Resonance phenomena for a dielectric spherical cavity embedded inside a fiber waveguide are treated analytically. The interaction of fiber and scatterer fields is described in terms of an internal equation which is reduced into an infinite system of equations. The case of optically small but dense spheres is considered in detail. The resonance phenomena occurring for this case permit a decoupling procedure to be developed for the infinite system of equations. Analytic expressions are derived for the low-order mode central frequencies and quality factors. Numerical results are presented.
© 1981 Optical Society of America
Nikolaos K. Uzunoglu, "Resonance of a dielectric cavity inside a fiber," Appl. Opt. 20, 857-861 (1981)