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Splitting the data into a spectrum of colored packets enabled a single computer chip to transmit a record 1.84 petabits of data per second over a fiber optic cable.
A single computer chip transmitted a record 1.84 petabits of data per second over a fiber optic cable - enough bandwidth to download 230 million photos in that amount of time, and more traffic than it travels through. entire Internet backbone per second.
Asbjørn Arvad Jørgensen of the Technical University of Denmark in Copenhagen and colleagues used a photonic chip, a technology that allows optical components to be incorporated into computer chips, to divide a data stream into thousands of separate channels and transmit them all at once. more than 7.9 kilometers. First, the team divided the data stream into 37 sections, each of which was sent to a separate core of the fiber optic cable. Each of these channels was then split into 223 data that existed in individual segments of the electromagnetic spectrum. This "frequency comb" of equally spaced light peaks across the spectrum allowed data with different colors to be transmitted simultaneously without interfering with each other, greatly increasing the capacity of each core.
Although data rates of up to 10.66 petabits per second were achieved before using bulky equipment, this research sets a record for transmission using a single computer chip as a light source. The technology could enable the creation of single, simple chips that can send far more data than existing models, dramatically reducing energy costs and increasing bandwidth.
The amount of data sent in the experiment was so large that there is no computer capable of providing or receiving so much information so quickly. In the experiments, the team instead passed "dummy data" through all channels, Jørgensen says, testing the output one channel at a time to verify that everything was sent and could be recovered intact.
“It could be said that the average Internet traffic in the world is about one petabit per second. What we send is twice as much, "says Jørgensen." It's an incredibly large amount of data that we send, essentially less than a square millimeter [of wire]. It just shows that we can go much further than we are today with Internet connections ”.
The chip needs a single laser, which shines continuously, divided into many frequencies, as well as separate devices to encode the data in each of the output streams. But Jørgensen says these could be integrated into the chip itself, making the entire device the size of a matchbox. Current devices for sending data using a single laser in a single slice of the spectrum have been miniaturized to that size, and Jørgensen says that if this device were built the size of a small server, it could transmit as much data as a matchbox. 8251. -device size: one for each channel that the team managed to send via a single cable.