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Opt Express. 2015 Nov 30;23(24):30872-7. doi: 10.1364/OE.23.030872.

Terahertz waveform generation for S<sub>21</sub>-parameter measurements using a fiber-coupled optical pulse shaper.

Abstract

A THz time-domain spectroscopy-based vector network analyzer for S<sub>21</sub>-parameter measurements is presented providing THz waveforms as input signal for waveguide-coupled devices under test. We integrate an optical pulse shaper into the emitter arm and fiber-couple the photoconductive antennas to allow for flexible usage. The pulse-shaping capabilities are demonstrated by realizing all 5 bit combinations of a 0.5 THz signal. Furthermore, we can set the center wavelength of the resulting THz spectrum. Finally, we apply the shaped THz waveforms to test the response of a low-noise amplifier.

PMID:
26698720
DOI:
10.1364/OE.23.030872

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