Large Mode Area Yb~(3+)-doped Double-clad Optical Fibers
大模场面积掺镱双包层光纤研究

With the MCVD(Modified Chemical Vapor Deposition) manufacture technics,the fiber isolation layers and porous frits were deposited.Under the condition of solution-doping,the effect of the technics,such as the temperature of porous frits,and Yb-Al codoping,were investigated.The core fabrication of the large mode area fiber was studied.The high concentration large mode area Yb-doped double clad fiber was obtained.The fiber optical parameters and laser characteristic were measured and analysed.The fiber core di...