与槽纤芯光子晶体光纤相似的高双折射、低损耗、近乎零的平坦色散

Chunrong Jia, Qingyu Zhang, Zhipeng Chen, Yukun Tang, Z. Di
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引用次数: 0

摘要

研究高性能光子晶体光纤(PCF)对太赫兹(THz)波导系统具有重要的科学意义。本研究介绍了一种新型 PCF 设计,其内核由类似开槽结构的最小亚波长单元组成,旨在实现高双折射和低损耗。通过仿真分析了所提出的 PCF 的光学特性,结果令人印象深刻。PCF 具有 0.07848 的超高双折射、10-17 dB/cm 的最小极限损耗以及低至 0.04251 cm-1 的有效材料损耗。此外,在 1.2-2.2 太赫兹的宽频率范围内,它的平坦色散接近零,为 -0.012 ± 0.074 ps/THz/cm。这种光纤不仅具有高双折射,而且在太赫兹波导的双折射、传输损耗和色散之间达到了最佳平衡,因而脱颖而出。这项工作对太赫兹通信系统、太赫兹偏振保持传输和传感应用的发展具有深远影响。此外,它还为设计优先考虑高双折射、低损耗和近零平面色散的太赫兹-PCF 建立了一个重要基准,为该领域未来的研究和开发提供了重要参考。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
High birefringence low loss nearly zero flat dispersion similar to slotted core photonic crystal fibers
Studying high-performance photonic crystal fibers (PCF) is of significant scientific importance for terahertz (THz) waveguide systems. This study introduces a novel PCF design with a core composed of the smallest sub-wavelength units resembling a slotted structure, aiming to achieve high birefringence and low loss. The optical properties of the proposed PCF are analyzed through simulations, yielding impressive results. The PCF exhibits an ultra-high birefringence of 0.07848, a minimum limiting loss of 10−17 dB/cm, and an effective material loss as low as 0.04251 cm−1. Moreover, it demonstrates near-zero flat dispersion of −0.012 ± 0.074 ps/THz/cm over a broad frequency range of 1.2–2.2 THz. This fiber stands out by not only providing high birefringence but also by striking an optimal balance among birefringence, transmission loss, and dispersion for THz waveguides. The implications of this work are profound for the development of THz communication systems, THz polarization-maintaining transmission, and sensing applications. Furthermore, it established an important benchmark for the design of THz-PCFs that prioritize high birefringence, low loss, and near-zero flat dispersion, offering an essential reference for future research and development in this field.
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