Manufacture Technology Research of Large Mode Area and Yb<sup>3+</sup> Doped Photonic Crystal Fiber

Abstract

The traditional technology in production of doped fiber has disadvantage of low doping concentration, uneven distribution of refractive index, being difficult to produce large core diameter etc. This paper according to the demand of high-power ytterbium doped photonic crystal fiber laser, makes a research of producing methods to large mode area, Yb3+ doped photonic crystal fiber. Anhydrous doping nanometer particles are obtained by solution doping method, using plasma non-chemical vapor deposition method produce fiber core material, large mode area, ytterbium doped fiber sample is made and laser properties experiments has been done. By experiments it is found that at 2cm pre-end of the sample has violet light, Yb3+ doped fiber has laser operation.