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首页> 外文期刊>Photonics and Nanostructures: Fundamentals and Applications >Theoretical investigation of a dispersion compensating photonic crystal fiber with ultra-high dispersion coefficient and extremely low confinement loss
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Theoretical investigation of a dispersion compensating photonic crystal fiber with ultra-high dispersion coefficient and extremely low confinement loss

机译：超高色散系数和极低限制损耗的色散补偿光子晶体光纤的理论研究

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摘要

A dispersion compensating photonic crystal fiber (DCPCF) with ultra-high chromatic dispersion coefficient and extremely low confinement loss based on a hybrid structure of dual-concentric core photonic crystal fiber (DCC-PCF), and depressed-clad photonic crystal fiber (DeC-PCF), is theoretically investigated. To enhance the performances with regard to dispersion and confinement loss of the proposed DCPCF, a high refractive index Germanium-doped rod is introduced in the central core. For the sake of comparison, two types of DCPCF published previously were simulated simultaneously in this work. The numeric results reveal that the proposed DCPCF has a dispersion coefficient of -51625 ps/km nm and a confinement loss of 6.54 x 10(-4) dB/km at a wavelength of 1.55 mu m; it undeniably has extremely good performances when compared with the other two types of DCPCF. Moreover, it is worthwhile emphasizing that the proposed structure has an advantage of easy fabrication. (C) 2015 Elsevier B.V. All rights reserved.
机译：基于双同心芯光子晶体光纤（DCC-PCF）和下包层光子晶体光纤（DeC-）的混合结构，具有超高色散系数和极低限制损耗的色散补偿光子晶体光纤（DCPCF） PCF），从理论上进行了研究。为了提高所提出的DCPCF在色散和限制损耗方面的性能，在中心纤芯中引入了高折射率掺锗棒。为了进行比较，在这项工作中同时模拟了先前发布的两种DCPCF。数值结果表明，所提出的DCPCF在1.55μm的波长处具有-51625ps / km nm的色散系数和6.54×10（-4）dB / km的限制损耗。与其他两种DCPCF相比，它无疑具有极佳的性能。此外，值得强调的是，所提出的结构具有易于制造的优点。 （C）2015 Elsevier B.V.保留所有权利。

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