Reconfigurable universal mode sorter built on an integrated photonics platform
Reconfigurable universal mode sorter built on an integrated photonics platform
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基于集成光子学平台的可重构通用模式分类器
DOI：
10.1117/12.2668649
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发表时间：
2023
期刊：
影响因子：
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通讯作者：
Boldin A
中科院分区：
文献类型：
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作者：
Boldin A
光学模式分类器是一种关键的使能技术，已广泛应用于通信和传感系统。常规地，这些是基于特定几何变换针对特定的光学模式集合而设计的。我们提出了一种新的方法，自由空间光学模式分选，可以定制测量任何一组空间模式或任意叠加的模式。我们的方法是使一个可重构的光子集成电路（PIC）的组合接口的多平面光转换器（MPLC）的纯光模式处理。我们已经成功地分选了一系列高阶空间模式，串扰平均值为-16dB，可重构性大于12 kHz。
Optical mode sorters are a key enabling technology that have been widely used in communication and sensing systems. Conventionally, these are designed for a particular set of optical modes based on specific geometric transformation. We present a new approach for free-space optical mode sorting that can be tailored to measure any set of spatial modes or arbitrary superpositions of modes. Our approach is enabled by the combination of a reconfigurable photonics integrated circuit (PIC) interfaced with a Multiple-Plane-Light-Converter (MPLC) for pure optical mode processing. We have successfully sorted a range of high order spatial modes with crosstalk with a mean value -16dB and a reconfigurability greater than 12kHz.