%0 Journal Article
%T Characteristics and Laser Performance of Yb3+-Doped Silica Large Mode Area Fibers Prepared by Sol每Gel Method
%A Shikai Wang
%A Fengguang Lou
%A Meng Wang
%A Chunlei Yu
%A Suya Feng
%A Qinling Zhou
%A Danping Chen
%A Lili Hu
%J Fibers
%D 2013
%I MDPI AG
%R 10.3390/fib1030093
%X Large-size 0.1 Yb 2O 3每1.0 Al 2O 3每98.9 SiO 2 (mol%) core glass was prepared by the sol每gel method. Its optical properties were evaluated. Both large mode area double cladding fiber (LMA DCF) with core diameter of 48 米m and large mode area photonic crystal fiber (LMA PCF) with core diameter of 90 米m were prepared from this core glass. Transmission loss at 1200 nm is 0.41 dB/m. Refractive index fluctuation is less than 2 ℅ 10 ˋ4. Pumped by 976 nm laser diode LD pigtailed with silica fiber (NA 0.22), the slope efficiency of 54% and ※light-to-light§ conversion efficiency of 51% were realized in large mode area double cladding fiber, and 81 W laser power with a slope efficiency of 70.8% was achieved in the corresponding large mode area photonic crystal fiber.
%K fiber laser
%K sol每gel method
%K Yb3+-doped silica glass
%K LMA DCF
%K LMA PCF
%U http://www.mdpi.com/2079-6439/1/3/93