Photonic integrated processor for structured light detection and distinction
Bütow J, Sharma V, Brandmüller D, Eismann JS, Banzer P (2023)
Publication Type: Journal article
Publication year: 2023
Journal
Book Volume: 6
Article Number: 369
Journal Issue: 1
DOI: 10.1038/s42005-023-01489-2
Abstract
Integrated photonic devices are pivotal elements across research fields that involve light-based applications. Particularly versatile platforms are programmable photonic integrated processors, which are employed in applications like communication or photonic computing. Free-space distributions of light can be coupled to such processors, which subsequently control the coupled light on-chip within meshes of programmable optical gates. This enables access to the spatial properties of free-space light, particularly its relative phase, which is usually challenging to measure. Here, we discuss and show the detection of amplitude and phase distributions of structured higher-order light beams using a multipurpose photonic processor. This can be used to directly distinguish light’s orbital angular momentum without including additional elements interacting with the free-space light. We envision applications in a range of fields that rely on the spatial distributions of light’s properties, such as microscopy or communications.
Involved external institutions
Austria (AT)How to cite
APA:
Bütow, J., Sharma, V., Brandmüller, D., Eismann, J.S., & Banzer, P. (2023). Photonic integrated processor for structured light detection and distinction. Communications Physics, 6(1). https://dx.doi.org/10.1038/s42005-023-01489-2
MLA:
Bütow, Johannes, et al. "Photonic integrated processor for structured light detection and distinction." Communications Physics 6.1 (2023).
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