Journal
OPTICS EXPRESS
Volume 26, Issue 25, Pages 32758-32764Publisher
OPTICAL SOC AMER
DOI: 10.1364/OE.26.032758
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- Open Access Publication Fund of the University of Duisburg-Essen
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We investigate the performance of terahertz (THz) quasi time-domain systems (QTDS) driven by electrically pulsed multi-mode laser diodes operating at 659 nm. We show that at the same average output power, a reduced duty cycle considerably increases the obtained bandwidth. In the presented experiment, the high frequency performance is improved by 50 dB/THz. We identify the broadening of the optical spectrum caused by pulsing the laser source to be responsible for the increased THz bandwidth. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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