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We explored an origin of the random error in intensity spectra measured with THz-TDS. The optical-delay scanning, variations in temperature and humidity, the intensity fluctuation of fs-laser, and the THz detectors of LT-GaAs PC antenna and ZnTe EO-crystal are not the predominant origin of the random error.
This study aims to compare the random errors in optical constants like transmittance and absorption coefficients estimated from the sets of intensity spectra with dynamic range obtained from the noise floor in one spectrum measured by THz TDS for ZnTe samples. Results revealed that the error obtained from the noise floor and the statistical analysis simultaneously could show the frequency limit of...
We developed a high-speed (over 30 GHz) and high-responsivity (nearly 0.8 A/W) back-illuminated PD with a newly developed high reflective reflector, and successfully demonstrated an error free 25-Gbps 10-km SMF transmission.
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