Demonstration of 8-Channel 32-Gbit/s QPSK Wireless Communications at 0.28-0.33 THz Using 2 Frequency, 2 Polarization, and 2 Mode Multiplexing

We experimentally demonstrate a 32-Gbit/s QPSK THz wireless communication link using 2 frequencies, 2 polarizations and 2 OAM modes at ~0.3 THz. By tuning the frequency of the data-carrying lasers and the interfering CW laser, the system can cover the 0.28-0.33 THz band.