一个芯片集成的基于的微波振荡器
Wei Sun1, Zhiyang Chen1, Linze Li2
1International Quantum Academy, Shenzhen, 518048, China.
Light, science & applications
|April 29, 2025
概括
本研究介绍了第一个完全混合集成的基于微的微波振荡器,实现超低相位噪声,用于先进的通信和传感应用. 该芯片集成了激光器,微光器和光探测器,使其能够实现紧且高性能的微波生成.
科学领域:
- 光子学和集成电路技术
- 微波工程 微波工程
- 光学频率的光学频率.
背景情况:
- 低噪音微波振荡器对于无线通信,雷达和计时系统至关重要.
- 使用光学频率的光子微波合成器与电子振荡器相比,提供了优越的噪声性能和带宽.
- 基于芯片的克尔频 (微) 正在成为微波发电的紧,低功耗替代品.
研究的目的:
- 为了展示第一个完全混合集成的,基于微的微波振荡器在一个共同的基板上.
- 在一个紧的设备中实现超低噪声性能和高频稳定性.
- 探索微状态中的噪声灭动态,以提高微波信号质量.
主要方法:
- 高功率DFB激光器,化微共振器 (Q > 25 × 10 ^ 6) 和高速光电探测器 (110 GHz带宽) 在单一芯片上的混合集成.
- 使用定制的微电子电路为设备供电.
- 利用非线性激光微共振器相互作用来观察和控制杀噪声的动态.
主要成果:
- 展示了一种10.7GHz微波振荡器,其线宽为6.3MHz,相位噪声为-75/-105/-130dBc/Hz,其偏移为1/10/100kHz.
- 实现了超低噪声激光 (6.9 Hz 线宽) 和在 76 mm^2 足迹范围内连贯的微生成.
- 观察到噪声灭动态,抑制微波相位噪声>20dB,并提高微波功率高达10dB.
结论:
- 开发的混合集成微振荡器代表了紧,高性能微波发电的重大进步.
- 经过证明的压噪机制为减轻噪声和提高信号质量提供了一种全新的方法.
- 这项技术有可能彻底改变通信,传感,成像和精度测量的应用.
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