Spectrum Analysis Tutorial, Part 1: The Discrete Fourier Transform. Computer Music Journal 11, 9 (1987). Article Google Scholar Bergland, G. D. A guided tour of the fast Fourier transform. IEEE Spectr. 6, 41–52 (1969). Article ADS Google Scholar Jacobsen, E. & Lyons, R. The ...
The OSNR is defined to easily relate to spectral measurements using an optical spectrum analyzer (OSA) that measure all the power in a given bandwidth, typically 0.1 nm in the early models available. From Eqs. (1.2) and (1.11), the relation between the OSNR and SNR is given by [4] (...
In the first spectrum, the intensity of near infrared region appears lower than its actual level due to the decrease in the response of the analyzer while approaching to the edges of the measurable spectra region. It may also be caused by the difficulty of collecting all the beam with broad...
et al. Tutorial on metalenses for advanced flat optics: design, fabrication, and critical considerations. J. Appl. Phys. 131, 091101 (2022). Article ADS Google Scholar Huang, K. et al. Planar diffractive lenses: fundamentals, functionalities, and applications. Adv. Mater. 30, 1704556 (2018...
Figure 3.Spectral characteristics of the electro-absorption modulated laser-based 100GBASE–LR4/ER4 TOSA. Optical spectrum analyzer resolution bandwidth = 0.1 nm, and eye diagrams measured at 28 Gb/s PRBS 231-1 for 100G TOSA calibrated for(a)RF ER >5 dB with peak-to-peak voltage (Vpp) ...
The room temperature terahertz spectra of FLD form I presented in the range of 0.25–4.5 THz. The THz-TDS (red) and THz-Raman (blue) spectra have been combined with the ATR-FT-FIR and normal Raman spectra, respectively (merged at 3.75 THz). The room temperature INS spectrum (black bold...
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Figure 5b presents the electrical spectrum of 18.78 Gbps 16-QAM-OFDM signal over 150 GHz carrier frequency through 40 km SMF, 1.2 km optical wireless, and 0.5 m RF link (system I). The electrical spectrum of 18.78 Gbps 16-QAM-OFDM signal over 37.5 GHz carrier fre...
The theoretical method described in the preceding section is implemented using Wolfram Mathematica with a user-friendly GUI and a detailed tutorial, which can be found in ref.54. Following the naming convention of our previous work, we named the software presented in this work as ♯SHAARP.ml...
A coherent optical spectrum analyzer is integrated with a rotating quarter wave plate polarimeter. The combined polarimeter optical spectrum analyzer (POSA) allows the extraction of the state of polarization with high spectral resolution. The POSA is used in this work to study two optical systems. ...