Aiming to implement terabit-class wireless transmission to support wireless demand in the 2030s, NTT Corporation (NTT) has successfully achieved the world’s first “orbital angular momentum (OAM) multiplexing high-capacity wireless transmission—at 1.44 Tbit/s—using an ultra-wide bandwidth of 32 GHz. As an innovative wireless-communication technology that uses the sub-terahertz (sub-THz) band, this achievement will enable wireless access to vast amounts of information at data-transfer rate exceeding 1 Tbit/s. This achievement was realized using the sub-THz band within...