Noise is an issue in optical telecommunications. And findings means of controlling noise is key to physicists investigating light-emitting diodes or lasers. Now, an Italo-Iraqi team has
worked on a particular type of light source, called the quantum dot light-emitting diode (QDLED). In a study published in EPJ D ("Complex dynamics in Quantum Dot Light Emitting Diodes"), Kais Al Namee from the National Institute of Optics, in Florence, Italy and colleagues, demonstrate that modulating bias current of the QDLED could lead to countering the noise. This, in turn, leads to stabilising such light sources, making them better suited for optical telecommunications.
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