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在光子芯片上提供增强分辨率的MEMS计算光谱仪
Jing Zhou1,2, Hui Zhang3,4,5,6, Qifeng Qiao7
1School of Microelectronics, Shanghai University, Shanghai, China.
Nature communications
|November 26, 2024
概括
我们开发了一种新的光子学光谱仪,使用MEMS调和AI无声化. 这项技术在噪音条件下显著提高了光谱分辨率,为宽带光谱分析提供了具有成本效益的解决方案.
科学领域:
- 光子学和光谱学 在光子学和光谱学.
- 微电机系统 (MEMS) 是指微电机系统.
- 人工智能在信号处理中的应用
背景情况:
- 光子学使得紧的,经济高效的芯片规模光谱仪成为可能.
- 静电MEMS调节为可调节的干扰仪提供了高效率和低功耗.
- MEMS设备容易受到噪音的影响,降低了光谱分辨率.
研究的目的:
- 提出一种新的光谱仪设计,将MEMS可重新配置的合器与基于AI的无声化相结合.
- 为了解决基于MEMS的光子光谱仪的噪声限制.
- 提高宽带光谱分析的光谱分辨率和准确性.
主要方法:
- 在光子芯片上制造一个MEMS可重配置的低损失波导合器.
- 集成一个卷积自编码器消噪 (CAED) 机制.
- 在无噪声环境和噪声环境中对光谱仪性能进行表征.
主要成果:
- 在无噪声条件下实现了300nm带宽和0.3nm分辨率.
- 在30dB的信号噪声比环境中,CAED将重建分辨率从1.2nm提高到0.4nm.
- 消除噪声的方法显著提高了光谱分辨率,接近无噪声性能.
结论:
- MEMS调整和CAED的协同方法为光子光谱仪提供了一个强大的解决方案.
- 这项技术提供了准确,宽带和节能的光谱分析.
- 拟议的方法克服了MEMS噪声挑战,使得高分辨率的光谱测量成为可能.
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