New world record for internet data transmission set in Japan

Engineers at Japan's National Institute of Information and Communications Technology have set a new data transmission record of 319 terabits per second using optical fibers over 3,000 kilometers. This achievement nearly doubles the previous record. The system employs wavelength division multiplexing, splitting light signals into 552 channels and transmitting them through four optical fiber cores. Amplifiers with thulium and erbium reduce transmission loss. The new method is compatible with existing infrastructure, though no consumer application timeline is provided.

What was the new data transmission rate achieved by the engineers at Japan's National Institute?

• 200 terabits per second

• 319 terabits per second

• 150 terabits per second

• 400 terabits per second

How does the wavelength division multiplexing technology work?

• By splitting light signals into multiple channels

• By using sound waves for data transmission

• By transmitting data through wireless signals

• By using a single channel for data transmission

How many optical fiber cores were used in the new record compared to the previous one?

• Five

• Four

• Three

• Two

What elements are used in the amplifiers to reduce transmission loss?

• Copper and Aluminum

• Thulium and Erbium

• Gold and Silver

• Iron and Nickel

What is the potential benefit of the new optical fiber method in terms of infrastructure?

• It is incompatible with existing systems

• It can easily integrate with current infrastructure

• It requires completely new infrastructure

• It is only suitable for short distances