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A research team led by Benjamin J. Puttnam at the National Institute of Information and Communications Technology (NICT) reported that it transmitted data over a distance of more than 3000 km (1860 miles) at a rate of 319 Tbit/s and a transmission bandwidth of greater than 120 nm, across the S-, C-, and L-bands.
The team used a 4-core optical fiber with a 0.125-mm outer diameter to transmit the data, setting a record for data transmission over an optical fiber with a standard cladding diameter. The signal bandwidth of the long-haul transmission comprised 552 wavelength division multiplexing (WDM) channels.
The system uses WDM and a combination of optical amplification technologies to enable long-haul transmission of 552 WDM…READ MORE