Measuring, processing, and generating partially coherent light with self-configuring optics

Charles Roques-Carmes; Shanhui Fan; David A. B. Miller

doi:10.1038/s41377-024-01622-y

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Measuring, processing, and generating partially coherent light with self-configuring optics

Original Articles

- Measuring, processing, and generating partially coherent light with self-configuring optics
- Measuring, processing, and generating partially coherent light with self-configuring optics
- LSA 2024年13卷第11期页码：2726-2733
- Affiliations：
  
  E. L. Ginzton Laboratory, Stanford University, 348 Via Pueblo, Stanford, CA 94305, USA
- Author bio：
  
  Charles Roques-Carmes (chrc@stanford.edu)
- Funds：
- DOI：10.1038/s41377-024-01622-y
  中图分类号：
- 收稿日期：2024-03-25，
  
  修回日期：2024-08-30，
  
  录用日期：2024-09-03，
  
  网络出版日期：2024-09-20，
  
  纸质出版日期：2024-11-30
- Accepted：
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Measuring, processing, and generating partially coherent light with self-configuring optics[J]. LSA, 2024,13(11):2726-2733.

Roques-Carmes, C., Fan, S. H. & Miller, D. A. B. Measuring, processing, and generating partially coherent light with self-configuring optics. Light: Science & Applications, 13, 2726-2733 (2024).
Measuring, processing, and generating partially coherent light with self-configuring optics[J]. LSA, 2024,13(11):2726-2733. DOI： 10.1038/s41377-024-01622-y.

Roques-Carmes, C., Fan, S. H. & Miller, D. A. B. Measuring, processing, and generating partially coherent light with self-configuring optics. Light: Science & Applications, 13, 2726-2733 (2024). DOI： 10.1038/s41377-024-01622-y.

摘要

Abstract

Optical phenomena always display some degree of partial coherence between their respective degrees of freedom. Partial coherence is of particular interest in multimodal systems

where classical and quantum correlations between spatial

polarization

and spectral degrees of freedom can lead to fascinating phenomena (e.g.

entanglement) and be leveraged for advanced imaging and sensing modalities (e.g.

in hyperspectral

polarization

and ghost imaging). Here

we present a universal method to analyze

process

and generate spatially partially coherent light in multimode systems by using self-configuring optical networks. Our method relies on cascaded self-configuring layers whose average power outputs are sequentially optimized. Once optimized

the network separates the input light into its mutually incoherent components

which is formally equivalent to a diagonalization of the input density matrix. We illustrate our method with numerical simulations of Mach-Zehnder interferometer arrays and show how this method can be used to perform partially coherent environmental light sensing

generation of multimode partially coherent light with arbitrary coherency matrices

and unscrambling of quantum optical mixtures. We provide guidelines for the experimental realization of this method

including the influence of losses

paving the way for self-configuring photonic devices that can automatically learn optimal modal representations of partially coherent light fields.

关键词

Keywords

references

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