Structured Light in Turbulence
| Autor: | Ling Cheng, Andrew Forbes, Nokwazi Mphuthi, Isaac Nape, Mitchell A. Cox, Nikiwe Mashaba |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Signal Processing (eess.SP)
Signal processing Computer science Turbulence Bandwidth (signal processing) Optical communication FOS: Physical sciences Optical polarization 02 engineering and technology Multiplexing Atomic and Molecular Physics and Optics 020210 optoelectronics & photonics 0202 electrical engineering electronic engineering information engineering Electronic engineering FOS: Electrical engineering electronic engineering information engineering Electronic communication Electrical and Electronic Engineering Electrical Engineering and Systems Science - Signal Processing Structured light Optics (physics.optics) Physics - Optics |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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