Abstract-20 Mbps wireless communication demonstration using terahertz quantum devices

Li Gu, Zhiyong Tan, Qingzhao Wu,  Chang Wang,  Juncheng Cao, 
http://www.opticsjournal.net/abstract.htm?aid=OJ150729000104w3y6B8

A wireless terahertz (THz) communication link is demonstrated, in which a THz quantum cascade laser and a THz quantum-well photo-detector (QWP) serve as the emitter and receiver, respectively. With the help of the well-matched THz QWP, the optical collection efficiency has greatly been improved. A data signal transmitted over 2.2 m with a low bit error rate (<=1 \times 10-8) and data rate as high as 20 Mbps is achieved, which are almost 1 order of magnitude higher than that previously reported.