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3 results for “PAM-4”
Experimental characterization of TERIPHIC 4-fold and 8-fold InP photodiode arrays - Detection of 50Gbaud signals with NRZ and PAM-4 modulation formats
<p>The data sets refer to the results from the experimental characterization of the TERIPHIC 4-fold and 8-fold InP-photodiode arrays, which operate in the O-band. The experimental setup consisted of a commercially available off-the-shelf (COTS) laser source, a COTS Mach-Zehnder modulator, and the TERIPHIC PD arrays. For the purposes of the experiments, signals with NRZ and PAM-4 modulation formats and 50 Gbaud symbol rates were generated, transmitted, and detected by the TERIPHIC photodetectors. Two different subassemblies were evaluated. The first subassembly had four InP photodiodes and the second eight. The generated photocurrents were sampled by a real-time oscilloscope with a 256 Gbaud sample rate. The data sets are actually the samples extracted from the oscilloscope. The data sets have a filename in the format “Symbol rate#Modulation formats#PDn#Transmission length#version#Subassemblyn.bin”, where<br> Symbol rate = 50 Gbaud<br> PDn, for n= 1,2, ...,8<br> Transmission length = B2B (0 km), 2 km, and 10 km<br> Subassembly for n=1 and 2<br> <br> The data sets are parts of the Open data management plan of the TERIPHIC ICT project (GA No. 825502)</p>
Experimental characterization of TERIPHIC quad InP EML array - Generation and transmission of 50Gbaud signals with NRZ and PAM-4 modulation formats
<p>The data sets refer to the results from the experimental characterization conducted on the TERIPHIC quad InP-EML array, which operates in the O-band. Each EML incorporates a DFB laser, an Electroabsorption modulator, and a Semiconductor Optical Amplifier to provide additional power boost, all on the same die. Three out of the four EMLs were characterized successively and generated signals at symbol rates of 50 Gbaud and transmitted them over various fiber lengths. The modulated optical signals were detected by a single commercially avalaible photodetector with more than 70 GHz 3-dB bandwidth. The generated electrical signals were then sampled by a real-time oscilloscope with a 256 Gbaud sample rate. A low-pass filter with a 50 GHz 3-dB cut-off frequency was digitally applied to the oscilloscope to improve the signal-to-noise ratio.<br> The data sets have a filename in the format “Symbol rate#Modulation formats#EMLn#Transmission length#version.bin”, where<br> SYmbol rate = 50 Gbaud<br> EMLn, for n= 2, 3, 4<br> Transmission length = B2B (0 km), 2 km, and 10 km<br> Version: v1, v2 and v3. Same operating parameters but at different time index<br> <br> The data sets are parts of the Open data management plan of the TERIPHIC ICT project (GA No. 825502)</p>
Simulation of 50 GBaud PAM-4 signals transmitted over multiple fiber lengths for WDM operation
<p>The data sets consist of simulated waveforms of 50 Gbaud PAM-4 signals generated using optical transmitters based on EML arrays operating in the O-band, each one integrating on the same die a DFB laser, an Electroabsorption modulator and a Semiconductor Optical Amplifier for extra power boost. The purpose was to simulate the operation of 400 GbE, 800 GbE and 1600 GbE optical interconnects over various transmission distances. The optical signals from the EML transmitters are multiplexed using an AWG with 100-GHz 3-dB channel bandwidth and then transmitted over different lengths of SMF optical fiber. Each EML has 35 GHz bandwidth 3-dB bandwidth and 0 dBm optical output power. The data sets have a filename in the format “channel_N_channel#_amplifier_#km_waveform.csv”, where<br> N (the total number of channels in the optical interconnect) = 1, 4, 8, 16<br> Channel# (the specific channel that the data set corresponds to) = 1, 2, 3… N<br> Amplifier (the presence or not of an amplifier) = SOA : with SOA present, NOSOA : without SOA present<br> #km : the number of transmission kilometers<br> The data sets are parts of the Open data management plan of the TERIPHIC ICT project (GA No. 825502)</p>
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