TAPERED LENSED FIBER FOR FOCUSING AND CONDENSER APPLICATIONS

摘要

A tapered lensed fiber (2) includes a tapered multimode fiber (4) having a gradient-index core and an optical fiber (6) attached to the tapered multimode fiber (4). A method for forming a tapered lensed fiber (2) includes attaching an optical fiber (6) to a multimode fiber (4) having a gradient-index core, applying heat to a surface of the multimode fiber, and pulling the multimode fiber (4) into a taper. The method also allows for forming a tapered polarization-maintaining fiber while preserving stress rods and polarization isolation properties of the polarization-maintaining fiber.