Saturday, November 8, 2014

Abstract-All fiber-coupled THz-TDS system with kHz measurement rate based on electronically controlled optical
Roman J. B. Dietz, Nico Vieweg, Thomas Puppe, Armin Zach, Björn Globisch, Thorsten Göbel, Patrick Leisching, and Martin Schell  »View Author Affiliations

We demonstrate a completely fiber-coupled terahertz (THz) time-domain spectrometer (TDS) system based on electronically controlled optical sampling with two erbium-doped femtosecond fiber lasers at a central wavelength of 1560 nm. The system employs optimized InGaAs/InAlAs photoconductive antennas for THz generation and detection. With this system, we achieve measurement rates of up to 8 kHz and up to 180 ps scan range. We further achieve 2 THz spectral bandwidth and a dynamic range of 76 dB at only 500 ms measurement time.
© 2014 Optical Society of America

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