Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Structured Light in Turbulence   Optical communication is an integral part of the modern economy, having all
but replaced electronic communication systems. Future growth in bandwidth
appears to be on the horizon using structured light, encoding information into
the spatial modes of light, and transmitting them down fibre and free-space,
the latter crucial for addressing last mile and digitally disconnected
communities. Unfortunately, patterns of light are easily distorted, and in the
case of free-space optical communication, turbulence is a significant barrier.
Here we review recent progress in structured light in turbulence, first with a
tutorial style summary of the core concepts, before highlighting the present
state-of-the-art in the field. We support our review with new experimental
studies that reveal which types of structured light are best in turbulence, the
behaviour of vector versus scalar light in turbulence, the trade-off of
diversity and multiplexing, and how turbulence models can be exploited for
enhanced optical signal processing protocols. This comprehensive treatise will
be invaluable to the large communities interested in free-space optical
communication with spatial modes of light.

7
The categories of this paper are: hep-th
30
The categories of this paper are: q-alg
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
9
The categories of this paper are: nlin
13
The categories of this paper are: quant-ph
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
27
The categories of this paper are: comp-gas
14
The categories of this paper are: math-ph
20
The categories of this paper are: acc-phys
34
The categories of this paper are: chem-ph
5
The categories of this paper are: gr-qc
26
The categories of this paper are: bayes-an