Researchers in China have unveiled a holographic data storage system that uses multiple properties of light, including amplitude, phase and polarization to store and retrieve information in three dimensions.
Led by Xiaodi Tan, PhD, a professor at Fujian Normal University in China, the team found a novel way to pack significantly more information into the same physical space compared to conventional storage methods.
Holographic data storage is an advanced optical technology that uses laser light to store digital information inside a material. Instead of storing data on a surface like a hard drive or optical disc, it records overlapping light patterns throughout the material’s volume.
This results in higher storage density and faster data transmission. “Based on the principle of polarization holography, we used a deep learning architecture known as a convolutional neural network model to enable the use of polarization as an independent information dimension,” Tan said.
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