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Cost-effective method to mass produce quantum dot lasers unveiled
A scalable, efficient, and cost-effective approach to producing quantum dot lasers at scale is crucial for the development of faster and better optical communication devices.
These particles are called quantumdots and they allow great control over the laser’s properties, making it very useful for applications that require fine-tuned light at very small scales. The researchers wanted to produce large quantities of high-quality quantum dot laser diodes but they discovered that the conventional methods used for this purpose are slow, inefficient, require expensive indium phosphide (InP) substrate, and are therefore not scalable. “We successfully developed indium arsenide/gallium arsenide (InAs/GaAs) quantum dot laser diodes on gallium-arsenic (GaAs) substrates, which are suitable for the 1.3 µm wavelength band used in optical communications,” the study authors .
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