一个MEMS格子调制器,具有可调节的正弦格子,用于大规模可伸缩开口
Datai Hui1, Dongpeng Li1, Binbin Wang1
1Key Laboratory of Micro/Nano Systems for Aerospace, Ministry of Education, Northwestern Polytechnical University, 710072, Xi'an, China.
Microsystems & nanoengineering
|March 2, 2025
概括
这项研究引入了一种新的微电子机械系统 (MEMS) 格子调制器,具有大光圈和高光学效率. 这种新的设计克服了以前的MEMS调制器的局限性,实现了更快,更高效的光通信.
科学领域:
- 光电学是指光电子产品.
- 在 MEMS 设备中,MEMS 设备是非常重要的.
- 纳米光子学 纳米光子学
背景情况:
- 微电子机械系统 (MEMS) 格调节器提供光束方向,但在光学效率和光圈尺寸方面存在局限性.
- 现有的设计使用可移动的带,导致与微镜设备相比的制造复杂性和成本问题.
研究的目的:
- 开发一个具有增强光圈可扩展性和高光学效率的MEMS格子调制器.
- 为了解决先进光学应用的传统MEMS调制器的局限性.
主要方法:
- 该研究采用可调节的正弦格设计,具有宽侧受约束的连续带,远离末端受约束的带.
- 这种方法有助于提高可扩展性和增加格子表面的填充因子.
主要成果:
- 一个具有30x30mm光圈和高达90%光学效率的MEMS格子调制器被实验证明.
- 该设备实现了1.1μs的机械沉降时间,>20dB的灭比率和>95%的动态调制对比度在250kHz.
- 实现了宽波长调制 (635-1700nm) 和广泛的视野 (±30°).
结论:
- 开发的MEMS格子调制器在光圈尺寸和光学效率上提供了显著的改进.
- 它显示了高速光衰减和调制反射反射器自由空间光学 (MRR-FSO) 通信的巨大潜力.
- 这项技术为未来的高速,节能,经济高效的通信网络铺平了道路.
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