The dataset consists of simulated waveforms and eye diagrams captured at both transmitter (Tx) and receiver (Rx) ends, aiming to assess transmission performance across various operational temperatures of the vertical-cavity surface-emitting laser (VCSEL)-based Tx (25, 55, and 85 °C). Specifically, at the Tx-end, the simulation data are enhanced with captured spectra at the VCSEL-based Tx output. For each temperature, the peak-to-peak voltage of the RF electrical input was set at 200 mV, operating at 50 GBaud with an OOK-NRZ modulation format. This peak-to-peak voltage was selected in order to align with the performance of a typical network interface controller. In addition, the chirp factor of the VCSEL-based Tx was set at 10 and 12. Following this, the transmission performance was examined across fiber lengths of 500 m and 1 km. The exported data focused on capturing the simulation results at three critical stages of the transmission: a) during the generation of the RF 50 GBaud OOK-NRZ signals, b) at the VCSEL output, and c) during the reception of the electrical signal at the Rx-end (transimpedance amplifier (TIA) output). The devices that impose the bandwidth limitations and are investigated in these simulations, were: the laser driver, VCSEL, photodiode, and TIA. 

The dataset comprises raw simulation data concerning waveforms and eye diagrams of 50 Gb/s OOK-NRZ signals at various stages, both at the transmitter (Tx) and receiver (Rx) ends. This version is further enhanced with spectra data captured at the Tx-end. These simulations were conducted to assess the transmission performance of the Module-1b SPRINTER prototype, which facilitates a 200 Gb/s aggregated capacity and supports the generation and detection of four 50 GBaud OOK-NRZ signals. The dataset is presented in *.csv format and encompasses results obtained for various operational temperatures of the Tx-side. Additionally, this version contains simulation data for different chirp factors at the Tx end. These evaluations were conducted during transmission through a standard single-mode fiber across for two different fiber lengths (500 m & 1 km).