利用焦科夫斯基变换设计用于椭圆到圆形模式转换的光纤

Shuaikang Fu, Ping Jiang, Yan Qin, Jianing Liu, and Huajun Yang
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引用次数: 0

摘要

本研究探讨了如何提高光纤与半导体激光器发出的椭圆高斯光束之间的耦合效率,特别是在光纤通信系统中的耦合效率。我们介绍了一种利用 Joukowsky 变换进行光纤设计的方法,该方法可促进从椭圆到圆形的高效模式变换,从而提高单模和多模光纤的耦合效率。理论分析和数值模拟表明,具有结构过渡纤芯的光纤在不同长度上都能保持高效的模式转换,其结构也相应得到了优化。此外,我们的研究还揭示了所设计光纤保留偏振态的能力,这可能会对精密光学应用产生重大影响。所提出的设计为提高光通信系统的性能,尤其是波分复用(WDM)传输系统和光纤激光器的性能提供了一种方法。
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Utilizing Joukowsky transformation in the design of optical fiber for elliptical-to-circular mode conversion
This study addresses the challenge of enhancing coupling efficiency between optical fibers and elliptical Gaussian beams emitted by semiconductor lasers, particularly in fiber communication systems. We introduce a method for fiber design utilizing the Joukowsky transformation to facilitate efficient mode transformation from elliptical to circular, thereby augmenting the coupling efficiency with both single-mode and multimode fibers. Theoretical analysis and numerical simulations demonstrate that the fiber with a structurally transitional core maintains high-efficiency mode transformation across various lengths, and its structure has been optimized accordingly. Additionally, our investigation reveals the designed fiber’s ability to preserve polarization states, which could have significant implications in precision optical applications. The proposed design offers an approach to improving performance in optical communication systems, especially in wavelength-division multiplexing (WDM) transmission systems and fiber lasers.
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