基于混合玻璃光纤中超连续谱产生的数值模拟.doc

文档介绍：
基于混合玻璃光纤中超连续谱产生的数值
模拟#
闫培光,林荣勇,董瑞娟,张格霖,黄诗盛,李会权*
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(深圳大学激光工程重点实验室,广东省深圳市 518060)
摘要:设计了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并同时在 1 000 ~6 000 nm 波长范围内对其色散特性进行了
模拟分析。结果表明:当纤芯直径为 μ m 时,光纤有两个零色散点(zero dispersion
wavelength,ZDW),分别是 1 450 nm 和 2 870 nm,反常色散区覆盖 1 450 ~2 870 nm。用 2
μ m 激光器泵浦此光纤,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),模拟分析中红外超连续谱(mid-infrared supercontinuum,mid-IR SC)
产生的特性。
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
中图分类号:TN248
Numerical simulation on supercontinuum generation in an
As2S3-silica hybrid glass fiber
YAN Peoguang, LIN rongyong, DONG Ruijuan, ZHANG Genlin, HUANG Shisheng,
LI Huiquan
(Shenzhen Key Laboratory of Laser Engineering, Shenzhen University 518060)
Abstract: We designed an As2S3-silica hybrid grass fiber. Then we simulated and analyzed the
corresponding dispersion in the wavelength range of 1000nm-6000nm by adjusting the fiber core
diameter. Simulation shows that it has two zero dispersion wavelength (1450nm and 2870nm)
when the fiber core diameter is , and the anomalous dispersion is from 1450nm to 2870nm.
In order to simulate and analyze the characteristics of Mid-IR supercontinuum which generation
from the As2S3-silica hybrid grass fiber, we used a 2μm laser to pump the fiber by changing the
peak pump power and the full width at half maximu