概括
我们开发了一种新型的循环偏振光束分离器,使用螺旋扭曲的双空心反共振纤维. 这种设备有效地分离循环偏振光,推进光学信息处理和通信技术.
科学领域:
- 光学和光子学 在光学和光子学.
- 光纤光学是指光纤的使用.
- 轻度操纵 轻度操纵 轻度操纵
背景情况:
- 空心反共振纤维对于操纵光的旋转和轨道角动量变得越来越重要.
- 空间分割复合技术推动了对先进光学元件的需求.
研究的目的:
- 提出和设计一个循环极化束分离器 (CPBS),使用螺旋扭曲的双空心反共振纤维 (TDHC-ARF).
- 调查设计的CPBS用于光学信息处理的性能和功能.
主要方法:
- 利用有限元法与转换光学相结合,分析TDHC-ARF中循环极化固有模式的合特性.
- 开发了一个基于全向量有限元束传播方法的3D模拟代码,用于状波导来验证性能.
主要成果:
- 设计的CPBS在68纳米带宽 (1.4121.48μm) 上运行,长度为17.47厘米.
- 实现了极化灭绝比> 20dB和更高阶模式灭绝比> 100.
- 从线性极化高斯光束中对直角循环极化组件进行空间分离,将它们分离到一个核心中.
结论:
- 开发的CPBS有效地在TDHC-ARF的不同核心中分离循环偏光.
- 这项工作使得基于空心反共振纤维的全纤维光学设备的设计成为可能.
- 为光学信息处理和通信中的应用开辟了新的途径.
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