Japan achieves 402 Tb/s data rate speed over 50 km with commercial optical fiber, by transmitting on the unused wavelength bands of 37 THz
World record-shattering 402 TB data sent in a second via optical fiber | 37.6 THz optical bandwidth achieved by using 6 doped-fiber amplifier variants and Raman amplification, covering all low-loss transmission bands of silica fibers.
