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Fiber-coupled terahertz TDS combining high speed operation with superior dynamic range

: Roehle, H.; Dietz, R.; Sartorius, B.; Schell, M.


Institute of Electrical and Electronics Engineers -IEEE-:
37th International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2012 : University of Wollongong, Australia, September 23 - 28, 2012
Piscataway/NJ: IEEE, 2012
ISBN: 978-1-4673-1598-2 (Print)
ISBN: 978-1-4673-1596-8 (Online)
ISBN: 978-1-4673-1597-5
Art. 6380181
International Conference on Infrared, Millimeter and Terahertz Waves (IRMMW-THz) <37, 2012, Wollongong/Australia>
Fraunhofer HHI ()

Highly efficient mesa-structured 1.5 m photoconductive antennas, direct detection without lock-in amplifier, and a voice-coil mirror drive with accurate position sensor are merged to a fast and precise system. A pulse trace of 25 ps is measured every 50 ms, and integration over 15 s results in a superior 75 dB dynamic range and a bandwidth of 5 THz.