Low loss connection between hollow-core optical fibers using tube fiber as an optical coupler

Abstract

A system and method for coupling hollow-core optical fibers. The system operatively couples one hollow-core optical fiber to another hollow-core optical fiber using a length of tube fiber. The end face of each hollow-core optical fiber is operatively coupled to a respective end face of the tube fiber, e.g., by fusion splicing or another suitable means of connecting optical fibers. In operation, light propagating through one of the hollow-core optical fibers is transmitted into an end face of the tube fiber, propagates through the tube fiber, and is emitted from the other end face of the tube fiber and into the other hollow-core optical fiber.

Dependencies are inferred from the claim text.