Analysis of an upside-down taper lens end from a single-mode step-index fiber

摘要

We introduce and analyze the upside-down taper lens end drawn from step-index fibers. Also, we model the refractive-index distribution and present the ABCD transformation matrix of this fiber end under paraxial approximation. The analysis can be useful for designing micro-optic image systems and laser diodes to single-mode fiber coupling optics. (C) 1998 Optical Society of America. [References: 5]