In a paper published in the journal Science, U.S. scientists said they revealed a "spiral vortex-shaped laser," a laser that encodes information into volumes and therefore transmits more information faster than traditional lasers, Make the computing industry change.
The researchers said that scientists can use the latest research to find new ways to make computers smaller, faster and cheaper. Fung Liang, associate professor at the Faculty of Engineering and Applied Sciences at the University of Buffalo, said: "To transmit more information with less energy, we need to rethink the parts inside the machine."
For decades, the solution for scientists has been to "plug" more components onto a silicon-based computer chip, but the existing method is facing a bottleneck: in recent years, the chip industry has been maintained for 50 years due to its proximity to the silicon atom limits Myth "Moore's Law" seems to be invalid. Researchers have put forward various methods such as optical communication technology to solve this problem. Optical communication uses light to carry information, and there are a variety of examples of optical communication: from ancient lighthouses to today's fiber optic cables and the like, and lasers are at the heart of today's optical communications. Scientists have been manipulating lasers in various ways, most often by having different signals travel in one path to carry more information, but at the moment these technologies - especially Wavelength Division Multiplexing (WDM) and Time Division Multiplexing (TDM) have reached the limit.
Engineers at the University of Buffalo find another way to use the optical manipulation of orbital angular momentum to advance laser technology. Orbital angular momentum technology allows the laser to be distributed in a spiral pattern with a vortex in the center. Although this spiral eddy current laser is too large for an existing computer to work, scientists can reduce it to be compatible with computer chips. Because the laser beam travels in a helical pattern, it encodes the information into different vortices, so it can carry more than 10 times as much information as a linearly moving conventional laser. Eddy current lasers are a component of many devices, such as advanced transmitters and receivers, and are also indispensable for building more powerful computers and data centers.
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