通过控制其反环中的相位转移来降低基于PIC的光电子振荡器的调整灵敏度的方法
Vladislav Ivanov1, Ivan Stepanov1, Grigory Voronkov1
1Research Laboratory "Sensor Systems Based on Integrated Photonics Devices", Ufa University of Science and Technology, 32, Z. Validi St., Ufa 450076, Russia.
Micromachines
|January 25, 2025
概括
本研究引入了一种使用集成光子学在光电子振荡器 (OEO) 中连续频率控制的新方法. 这项创新提高了微波信号生成准确性和灵活性,用于通信和传感系统.
科学领域:
- 光子学和光学 在光子学和光学.
- 微波工程 微波工程
- 信号处理 信号处理
背景情况:
- 无线电光子技术,特别是光电子振荡器 (OEO),为微波频率合成挑战提供了解决方案.
- OEO提供低相噪声和高频率,但需要大量的频率调步骤.
- 现有的方法缺乏先进通信和传感应用所需的微调精度.
研究的目的:
- 提出一种使用集成光子学的光电子振荡器 (OEO) 连续频率控制的新方法.
- 开发一个分析模型来计算OEO输出频率,考虑非线性错误和各种控制方案.
- 探索实现集成光学延迟线的实施,以实现精确的频率调.
主要方法:
- 在OEO反循环中调整一个集成的光学延迟线.
- 在非线性条件下开发分析模型来预测OEO输出频率.
- 使用热光学和电光学效应 (Ansys Lumerical) 模拟马赫-泽恩德干扰仪和微波振器延迟线.
主要成果:
- 演示了基于微环共振器 (MRR) 的电光延迟线,调灵敏度为174.5 MHz/V.
- 使用精密的数字对模拟转换器 (DAC) 实现了低至6.98 kHz的计算频率调节灵敏度.
- 与离散光学元件相比,拟议的方法提供了更高的频率调节精度和灵活性.
结论:
- 综合光子学方法使OEO的连续频率控制成为可能,克服了离散组件的局限性.
- 开发的分析模型准确地预测了OEO的频率调,并考虑了非线性.
- 这种技术显著提高了微波信号生成的准确性和灵活性,用于各种无线电工程应用.
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