YAG Laser Power Transmission through an Optical Fiber and its Industrial Applications

Abstract

The output power of YAG laser can be transmitted through a silica fiber, which gives rise tohigh flexibility in the laser processing system. In order to increase the laser fluence at the surfaceof a work piece for micro-cutting with a high aspect ratio, a fiber with smaller core-diametershould be used.
In this article, an advanced beam delivery system using a fiber which core size of down to 0.1mm and its applications are discussed. Deep UV power transmission from FHG-YAG laserthrough a highly OH-doped fiber is also discribed.