Spatial optical mode demultiplexing as a practical tool for optimal transverse distance estimation
Spatial optical mode demultiplexing as a practical tool for optimal transverse distance estimation
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DOI：
10.1364/optica.404746
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发表时间：
2020-11-20
期刊：
影响因子：
10.4
通讯作者：
Treps, Nicolas
中科院分区：
文献类型：
--
作者：
Boucher, Pauline;Fabre, Claude;Treps, Nicolas
我们提出了实验实现的同时空间多模解复用作为距离测量工具。我们使用这种技术来估计在横向平面的两个方向上的两个非相干光束之间的距离，并找到一个完美的符合理论预测，给出了适当的校准的解复用器。我们表明，即使灵敏度是有限的通道之间的串扰，我们可以在两个维度上进行测量远远超出了瑞利极限在一个大的动态范围。(C)根据OSA开放获取出版协议的条款，2020年美国光学学会
We present the experimental implementation of simultaneous spatial multimode demultiplexing as a distance measurement tool. We use this technique to estimate the distance between two incoherent beams in both directions of the transverse plane, and find a perfect accordance with theoretical predictions, given a proper calibration of the demultiplexer. We show that, even though sensitivity is limited by the cross-talk between channels, we can perform measurements in two dimensions much beyond the Rayleigh limit over a large dynamic range. (C) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreement