Lensed optical fiber taper and methods of manufacturing same

Abstract

There is described a method of manufacturing a lensed optical fiber using an optical fiber having a tapered region decreasing in diameter along a longitudinal direction leading to a taper tip. The method generally has: while the tapered region and the taper tip of the optical fiber are immersed into an etching liquid, heating the etching liquid surrounding the taper tip in accordance with a temperature gradient in which temperature increases longitudinally from the tapered region to the taper tip, said the local heating causing a corresponding etching rate gradient shaping the taper tip into a lens.

Dependencies are inferred from the claim text.