Shanghai research team proposes a new single-beam multidimensional optical storage solution
Single-beam multidimensional optical storage: a single point can distinguish 1024 states, and capacity jumps to 10 bits Supports high-speed writing and wide-field parallel reading; theoretically, DVD-sized media can reach 0.4 Pb
A research team from the University of Shanghai for Science and Technology recently proposed a singlebeam multidimensional optical storage technology that can distinguish 1,024 states at a single threedimensional storage point, equivalent to carrying 10 bits of information, and supports highspeed writing and widefield parallel readout. The related results were published on September 29 in Nature Photonics.
The research team introduced that this approach breaks through the limitations of traditional optical storage, which relies on twobeam coordination for writing and reading, reducing system difficulties such as precise alignment and stable control. According to the team's estimates, the theoretical storage capacity of a DVDsized medium can reach about 0.4 Pb, and the data readout reliability exceeds 99.99%.
The team said that by increasing the information dimension of a single recording point, the technology expands the path for growth in optical storage capacity, and also provides a new technical direction for largescale cold data storage such as AI training data, research data, and medical imaging.