Corning Laserton, Inc.

Lee-Ching Hwu

Thomas Chaodung Yang

Steven David Conover

An endface configuration of an optical fiber has a frustum region which is produced by polishing the endface. In order to produce the optimal rounded tip, however, the polished fiber is then fused. To increase coupling efficiency, the vertex angle of the polished frustum region is acute, preferably between 16 and 20&deg;. Further, to create a hyperbolic endface surface, an intermediate frustum region is preferably polished prior to fusing tip. This fused tip is preferably has a circular cross-section.

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Carlisle, MA, United States of America

Lee-Ching Hwu