Fully-integrated THz transceiver with 4.5 THz bandwidth and 70 dB dynamic range

We present a fully-integrated, fiber-coupled transceiver module for THz time domain spectroscopy. The transceiver combines emitter and receiver in a compact, 25 mm housing, which allows for THz reflection measurements under normal incidence. With a bandwidth of 4.5 THz and a peak dynamic range of 70 dB this THz reflection head is a versatile tool for material inspection and non-destructive testing.