Deep learning prediction of novel hollow core photonic crystal fiber with tuned As2S3 − LiNbO3 ring for multimode applications

IF 2.6 3区计算机科学 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC Optical Fiber Technology Pub Date : 2024-10-05 DOI:10.1016/j.yofte.2024.103998

Bibhatsu Kuiri , Aloke Kumar Pathak , Nilanjana Sarkar , Amlan Das , Manish Dev Sharma , Ardhendu Sekhar Patra

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Abstract

Multimode capability in photonic crystal fiber (PCF) is an important feature in fiber development. This study presents an innovative Dual Ring Hollow core PCF (DRH-PCF), designed to support a large number of multimode operations with minimal loss and flat dispersion optimized in the wavelength range of 1.26 µm to 1.66 µm. The DRH-PCF structure comprises a high-purity silica matrix, featuring a unique configuration that includes a hollow core and high indexed Lithium niobate (LiNbO₃)-Arsenic trisulfide (As₂S₃) dual rings of thickness 0.6 µm. This arrangement is complemented by a pattern of strategically placed air holes encircling the fiber. Our PCF is engineered to support an impressive 200 and more orbital angular momentum modes, with low confinement loss (∼10⁻⁵ dB/m) and near-flat dispersion (∼3 ps/mm/km) and very large power fraction (∼0.99), while maintaining high mode purity of >95 %. Furthermore, the fiber exhibits a near-flat dispersion profile over a wide spectral range, with a measured dispersion of ∼6 ps/(nm·km) around the operational wavelength. Stability due to fiber bend is also investigated for extreme bend tolerance (Bend radii R_B=1cm to 80 cm). Deep Learning prediction is used to train and predict the performance of the fiber and obtained remarkably close results (within 5 %). This combination of features makes our PCF an excellent candidate for diverse applications in high-capacity optical communication systems, sensing technologies, and nonlinear optics.

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用于多模应用的带有调谐 As2S3 - LiNbO3 环的新型中空纤芯光子晶体光纤的深度学习预测

光子晶体光纤 (PCF) 的多模功能是光纤开发中的一项重要特性。本研究介绍了一种创新的双环空心 PCF（DRH-PCF），其设计目的是在 1.26 µm 至 1.66 µm 波长范围内，以最小的损耗和优化的平坦色散支持大量多模操作。DRH-PCF 结构由高纯度二氧化硅基体组成，具有独特的配置，包括一个空心内核和厚度为 0.6 µm 的高分度铌酸锂 (LiNbO3) - 三硫化二砷 (As2S3) 双环。此外，光纤周围还战略性地布置了气孔。我们的 PCF 可支持 200 种以上的轨道角动量模式，具有低约束损耗（∼10-5 dB/m）、近乎平坦的色散（∼3 ps/mm/km）和非常大的功率分数（∼0.99），同时保持 95% 的高模式纯度。此外，该光纤在很宽的光谱范围内表现出近乎平坦的色散曲线，在工作波长附近测得的色散为 ∼6 ps/（nm-km）。此外，还对光纤弯曲造成的稳定性进行了研究，以应对极端弯曲容差（弯曲半径 RB=1 厘米至 80 厘米）。深度学习预测用于训练和预测光纤的性能，并获得了非常接近的结果（5% 以内）。这些特性的结合使我们的 PCF 成为大容量光通信系统、传感技术和非线性光学领域各种应用的理想选择。

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来源期刊

Optical Fiber Technology 工程技术-电信学

CiteScore

4.80

自引率

11.10%

发文量

327

审稿时长

63 days

期刊介绍： Innovations in optical fiber technology are revolutionizing world communications. Newly developed fiber amplifiers allow for direct transmission of high-speed signals over transcontinental distances without the need for electronic regeneration. Optical fibers find new applications in data processing. The impact of fiber materials, devices, and systems on communications in the coming decades will create an abundance of primary literature and the need for up-to-date reviews. Optical Fiber Technology: Materials, Devices, and Systems is a new cutting-edge journal designed to fill a need in this rapidly evolving field for speedy publication of regular length papers. Both theoretical and experimental papers on fiber materials, devices, and system performance evaluation and measurements are eligible, with emphasis on practical applications.