Researchers have developed a new method for fabricating lasers directly on silicon wafers, a breakthrough that could lead to more energy-efficient data centers.
Thank you for visiting nature.com. You are using a browser version with limited support for CSS. To obtain the best experience, we recommend you use a more up to date browser (or turn off compatibility mode in Internet Explorer). In the meantime, to ensure continued support, we are displaying the site without styles and JavaScript.The Internet is underpinned by light-wave communications, in which information is transmitted by pulses of light routed from a growing number of data centres.
The energy consumed by these centres is increasing rapidly as a result of the expanding use of data-hungry machine learning and artificial-intelligence systems. Light-management technology, in which photonic chips are built on silicon wafers, has emerged to address this issue. Laser light sources are key components of these chips, but so far, these lasers have been installed in a separate step. This study reports a method for fabricating lasers on standard silicon wafers that is compatible with existing processes and systems used to manufacture chips
Laser Silicon Data Centers Photonic Chips Energy Efficiency
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