亚声波注射锁 photonic 集成薄膜酸光电子振荡器
Zijun Huang1, Rui Ma1, Qiang Ying1
1State Key Laboratory of Optoelectronic Materials and Technologies, School of Electronics and Information Technology, Sun Yat-Sen University, Guangzhou 510275, China.
Nanophotonics (Berlin, Germany)
|December 22, 2025
概括
我们在薄膜酸上开发了一种新的集成光电子振荡器 (OEO). 该设备实现了超低相位噪声,用于高频无线电频率 (RF) 信号生成,这对于雷达和通信至关重要.
科学领域:
- 光子学 是一个光子学.
- 集成光学 集成光学 集成光学
- 射频工程 射频工程
背景情况:
- 光电子振荡器 (OEO) 对于产生高频,光谱纯净的射频 (RF) 信号至关重要.
- 由于激光不稳定性和环境因素,在集成的OEO中实现超低相位噪声具有挑战性.
- 现有的集成解决方案往往难以满足先进雷达和通信系统的严格相位噪声要求.
研究的目的:
- 在薄膜尼酸盐 (TFLN) 平台上演示了第一个光子集成的,高级次注射锁 OEO.
- 为了实现对外部射频源的更高顺序波的强有力的锁定,以改善信号生成.
- 在集成OEO中建立相位噪声性能的新基准.
主要方法:
- 在TFLN上单立体集成马赫-泽恩德调制器 (MZM) 和添加滴微波振器 (MRR).
- 使用高级次注入锁定与外部射频源在分数频率 (1/2N).
- 利用MRR的双共振来选择特定的调制侧带用于注射锁定.
主要成果:
- 使用第二级和第六级次和注入锁定,证明了28.7 GHz信号的生成.
- 实现侧模式抑制比 (SMSR) 超过78dB,具有最小的虚假排放.
- 测量阶段噪声低于-80dBc/Hz在100Hz和低于-115dBc/Hz在10kHz抵消从载体.
结论:
- 开发的基于TFLN的集成OEO成功地实现了高级次注入锁定.
- 这种方法显著提高了光谱纯度,并减少了产生的射频信号中的相位噪声.
- 该系统为集成的OEO设定了新的性能标准,为下一代雷达和通信技术铺平了道路.
相关概念视频
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