光子学报, 2012, 41 (5): 516, 网络出版: 2012-05-18   

Ge20Sb15Se65硫系玻璃光子晶体光纤的中红外色散特性

Dispersion Properties of Ge20Sb15Se65 Chalcogenide Glass Photonic Crystal Fiber for MidIR Region
刘永兴 1,2,3,*张培晴 1,2,3许银生 1,2,3戴世勋 1,2,3王训四 1,2,3徐铁峰 1,2,3聂秋华 1,2,3
作者单位
1 宁波大学 信息科学与工程学院
2 材料化学与工程学院
3 红外材料与器件实验室,浙江 宁波 315211
摘要
硫系玻璃与石英玻璃相比具有高折射率(2.0~3.5)、低声子能量 (<350 cm-1)、优良的中远红外透过性能(可至25 μm)等特性.本文制备了一种在中红外具有优良透过特性的无As环保型Ge20Sb15Se65硫系玻璃材料,以此为基质材料设计了一种三层空气孔结构光子晶体光纤,利用多极法对光纤的中红外色散特性进行了数值模拟,系统研究了结构参量孔径d、孔间距Λ 以及d/Λ 对其色散特性的影响.分析表明:通过改变包层空气孔直径d或空气孔间距Λ,可灵活的调节光子晶体光纤的零色散波长向短波或长波方向移动.通过优化结构参量发现,当Λ=3 μm,d/Λ=0.35 附近变化时,可获得3~5 μm色散平坦,且色散值小于5 ps·nm-1·km-1的光子晶体光纤.
Abstract
Compared with silica glass, chalcogenide glass possesses some unique advantages, such as high refractive index (2.0~3.5), low phonon energy (lower than 350 cm-1), and large infrared transmission window (up to 25 μm). In this paper, a kind of environmental protected Ge20Sb15Se65 chalcogenide glass was prepared, which showed good transmission in IR range. Based on this glass, a photonic crystal fiber with three rings air holes was designed. Multipole method was employed to study the dispersion properties of the designed photonic crystal fiber. The relationship between fiber structure parameters(the air diameter d, period Λ and the ratio d/Λ)and dispersion properties was presented. The simulation results showed that the zero dispersion point of photonic crystal fiber can be flexibility tuned to short or long wavelength region by control the fiber structure parameters. Finally, by optimizing the sturcure parameters, the dispersion flat photonic crystal fiber through of 3~5 μm was obtained, with the dispersion value less than 5 ps·nm-1·km-1.

刘永兴, 张培晴, 许银生, 戴世勋, 王训四, 徐铁峰, 聂秋华. Ge20Sb15Se65硫系玻璃光子晶体光纤的中红外色散特性[J]. 光子学报, 2012, 41(5): 516. LIU Yongxing, ZHANG Peiqing, XU Yinsheng, DAI Shixun, WANG Xunsi, XU Tiefeng, Nie Qiuhua. Dispersion Properties of Ge20Sb15Se65 Chalcogenide Glass Photonic Crystal Fiber for MidIR Region[J]. ACTA PHOTONICA SINICA, 2012, 41(5): 516.

本文已被 7 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!