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3 results for “optical metrology”
Hybrid Metrology for Nanostructured Optical Metasurfaces - Dataset
<p>This is the dataset of "Hybrid Metrology for Nanostructured Optical Metasurfaces", https://doi.org/10.1021/acsami.3c13923. </p>
Data set for "Optical multiplexing of metrological time and frequency signals in a single 100 GHz-grid optical channel"
<p>Here we share the relevant data of the manuscript “Optical multiplexing of metrological time and frequency signals in a single 100 GHz-grid optical channel”.</p> <p>Files:</p> <ul> <li>Opt_Fr_stability_part1.txt</li> <li>Opt_Fr_stability_part2.txt</li> </ul> <p>contain the data used for evaluation of optical frequency transfer stability (Fig. 7 in the paper). The measurements were done with 8-channels K+K phase/frequency recorder. Column 1 contains date, col. 2: time, col. 5: in-loop beatnote phase, col. 6: out-of-loop beatnote phase. The phase is recorded in cycles. In case of out-of-loop beatnote it was divided by factor of two before recording, therefore the data from col. 6 should be multiplied by two to obtain true values of the optical phase fluctuations.</p> <p>File:</p> <ul> <li>RF_stability.txt</li> </ul> <p>contains the data used for evaluation of RF frequency transfer stability (Fig. 8 in the paper). Column 1 contains time in hours, and col. 2 RF phase fluctuations in seconds.</p>
Datasets for the article "Embedded Digital Phase Noise Analyzer for Optical Frequency Metrology"
<p>These files contain the datasets related to the figures presented in the article Donadello et al. (2023) "Embedded Digital Phase Noise Analyzer for Optical Frequency Metrology", IEEE Transactions on Instrumentation and Measurement, 72, pp. 1–12, Article Sequence Number: 2005412. Available at: https://doi.org/10.1109/TIM.2023.3288255.<br> Each dataset is related to the respective figure number in the article, as indicated in the filename (e.g. "data_fig3a.csv" contains the data used to produce Fig. 3, subplot a).</p> <p>All the files are formatted in the comma-separated format.</p> <p>Description:<br> "data_fig3a.csv": coefficients for IQ demodulation and filtering, with f_int=200kHz.<br> "data_fig3b.csv": frequency response of demodulation filtering, with f_int=200kHz and f_int=10kHz.<br> "data_fig4a.csv": power spectral density (PSD) of frequency signals, at different signal amplitudes.<br> "data_fig4b.csv": overlapping Allan deviation of frequency signals, with either OCXO and maser references.<br> "data_fig4c.csv": measured signal frequency and amplitude as a function of nominal frequency deviation.<br> "data_fig4d.csv": measured signal amplitude as a function of nominal amplitude.<br> "data_fig5.csv": example signals related to the synchronized acquisition of RF inputs.<br> "data_fig7a.csv": synchronized time series of frequency deviation acquired over a fiber link in the self-heterodyne interference scheme.<br> "data_fig7b.csv": PSD of the frequency signals acquired over a fiber link in the self-heterodyne interference scheme.<br> "data_fig8a-without-corr.csv": synchronized time series of frequency deviation acquired over a fiber link in the heterodyne interference scheme without frequency drift correction.<br> "data_fig8a-with-corr.csv": synchronized time series of frequency deviation acquired over a fiber link in the heterodyne interference scheme with frequency drift correction.<br> "data_fig8b.csv": PSD of the frequency signals acquired over a fiber link in the heterodyne interference scheme.</p>
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