Simultaneous delivery of neodymium: yttrium aluminum garnet and CO laser beams by a single As-S glass fiber

The simultaneous energy delivery of neodymium:yttrium aluminum garnet (Nd:YAG) and CO laser beams by a single As‐S glass fiber is described. The transmission loss in the fiber of a Nd:YAG laser beam was 2.6 dB/m under the energy delivery. A fiber output of 14 W was obtained at an approximately 1:1 power ratio from these lasers with a 400‐μm core diameter fiber.