基于粉末烧结技术制备镱铝共掺大模场光子晶体光纤  

Fabrication of Yb^(3+)/Al^(3+) Co-doped Large-mode-area Photonic Crystal Fiber Based on Powder Sintering Technology

作　　者：刘建涛[1,2] 周桂耀[1,2,3] 夏长明[1,3] 

机构地区：[1]燕山大学河北省特种光纤与光纤传感重点实验室,河北秦皇岛066004 [2]燕山大学国家亚稳材料制备科学与技术重点实验室,河北秦皇岛066004 [3]华南师范大学广东省微纳光子功能材料与器件重点实验室,广州510006

出　　处：《光子学报》2013年第5期552-554,共3页Acta Photonica Sinica

基　　金：国家重点基础研究发展计划(No.2010CB327604)资助

摘　　要：采用粉末烧结技术制备出高浓度镱铝共掺石英棒,Yb3+掺杂浓度为12 000ppm(wt).利用此掺镱石英棒作为纤芯,拉制出镱铝共掺大模场光子晶体光纤,光纤模场面积为550μm2,模场直径26μm.实验结果表明:光纤在近红外波段(850～1 033nm)出现一个宽的吸收带,主吸收峰波长位于976nm,在此波长处吸收损耗高于10dB/m;采用波长为971nm的激光泵浦光纤,在1 050～1 125nm波长范围内产生高斯型的荧光峰,峰值波长位于1 088nm处,荧光半宽高45nm.Based on powder sintering technology,Yb3+/Al3+ co-doped silica rods are prepared,and the concentration of Yb3+ is up to 12 000 ppm(wt).Then,with the Yb3+/Al3+ co-doped silica rods as core materials,highly doped Large-mode-area Photonic Crystal Fibers(LMA-PCF) are fabricated by stack-draw method.The mode area can reach 550 μm2,and the mode field diameter is 26 μm.The results indicate that the fiber has a broad absorption band in the near infrared wavelength(850~1 033 nm),and the main peak is at the wavelength of 976 nm where the absorption loss is higher than 10 dB/m;when the fiber is pumped by the laser with a wavelength of 971 nm,there exists a Gaussian fluorescence peak in the wavelength range of 1 150~1 125 nm,with a peak value of 1 088 nm and a half-line width of 45 nm.

关 键 词：粉末烧结法 镱铝共掺石英棒 大模场面积 光子晶体光纤 

分 类 号：TN253[电子电信—物理电子学]