基于混合玻璃光纤中超连续谱产生的数值模拟  

Numerical simulation on supercontinuum generation in an As_2S_3-silica hybrid glass fiber

作　　者：闫培光[1] 林荣勇[1] 董瑞娟[1] 张格霖[1] 李会权[1] 黄诗盛[1] 

机构地区：[1]深圳大学激光工程重点实验室,深圳518060

出　　处：《深圳大学学报（理工版）》2014年第3期293-298,共6页Journal of Shenzhen University(Science and Engineering)

基　　金：国家自然科学基金资助项目(61275144);深圳市基础研究计划资助项目(JCYJ20120613172042264)~~

摘　　要：设计一种三硫化二砷混合玻璃光纤（As2S3-silica hybrid glass fiber,As2S3-silica HGF）,通过调整纤芯直径大小,在1 000～6 000 nm波长范围内对其色散特性进行仿真分析.结果表明,当纤芯直径为1.2μm时,光纤有两个零色散波长（zero dispersion wavelength,ZDW）,分别是1 450和2 870 nm,反常色散区覆盖1 450～2 870 nm.用2μm激光器泵浦光纤,通过改变泵浦激光的峰值功率和脉冲半极大宽度（full width at half maximum,FWHM）,模拟分析了中红外超连续谱（mid-infrared supercontinuum,mid-IR SC）产生的特性.A new As2S3-silica hybrid grass fiber was designed.The corresponding dispersion properties were realized by adjusting the fiber core diameter in the wavelength range from 1 000 nm to 6 000 nm.The simulation results have shown that two zero dispersion wavelengths could be achieved with a core diameter of 1.2 μm and the anomalous dispersion in this fiber design was from 1 450 nm to 2 870 nm.The characteristics of mid-infrared supercontinuum generation from this As2S3-silica hybrid grass fiber are analyzed by changing the pump pulse parameters,i.e.peak pump power and the full width at half maximum of the pulse at 2 μm wavelength.

关 键 词：光电子与激光技术 中红外超连续谱 三硫化二砷混合玻璃光纤 零色散点 反常色散区 峰值功率 半极大宽度 

分 类 号：TN248[电子电信—物理电子学]