Continuous wave terahertz systems exploiting 1.5 µm telecom technologies

A fiber-assembled CW THz System operating at 1.5 mu m is presented. High speed telecom photodiodes integrated with planar THz antennas serve as THz emitters with power up to 10 mu W. Photoconductive antennas based on LT InGaAs/InAlAs multi-layer structures allow coherent detection. The system operates in a wide frequency range of 0.1-1.6 THz.