4 papers
Structured Light in Turbulence
Mitchell A. Cox, Nokwazi Mphuthi, Isaac Nape +3
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 u…
Modelling the Memory of Turbulence-Induced Beam Wander
Mitchell A. Cox, Lucas Gailele, Ling Cheng +1
One of the major challenges for long range, high speed Free-Space Optical (FSO) communication is turbulence induced beam wander. Beam wander causes fluctuations in the received int…
The Resilience of Hermite- and Laguerre-Gaussian Modes in Turbulence
Mitchell A. Cox, Luthando Maqondo, Ravin Kara +3
Vast geographical distances in Africa are a leading cause for the so-called "digital divide" due to the high cost of installing fibre. Free-Space Optical (FSO) communications offer…
A high-speed, wavelength invariant, single-pixel wavefront sensor with a digital micromirror device
Mitchell A. Cox, Ermes Toninelli, Ling Cheng +2
The wavefront measurement of a light beam is a complex task, which often requires a series of spatially resolved intensity measurements. For instance, a detector array may be used…