Asynchronous sampling terahertz time-domain spectroscopy using semiconductor lasers

B. Döpke1, N. Surkamp1, Y. Hu1, C. Brenner1, A. Klehr2, A. Knigge2, G. Tränkle2 and M.R. Hofmann1

Published in:

Electron. Lett., vol. 54, no. 10, pp. 640-641 (2018).

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Abstract:

Asynchronous optical sampling terahertz time-domain spectroscopy using semiconductor laser-based ultra-short pulse sources is demonstrated. A pair of hybridly mode-locked edge-emitting external cavity lasers operating at a wavelength of 830 nm is used. Terahertz traces with spectral components over a range of 250 GHz are achieved.

1 Lehrstuhl für Photonik und THz-Technologie, Ruhr-Universität Bochum, D-44780 Bochum, Germany
2 Ferdinand-Braun-Institut, Leibniz-Institut für Höchstfrequenztechnik, D-12489 Berlin, Germany