"Optimization of CO\u2082-based Hollow-Core Fiber Gas Laser for Watt-level Power Output at 4.3 \u03bcm wavelength"

"This dataset contains the experimental and numerical data supporting the results reported in the associated manuscript on a continuous-wave CO\u2082-based hollow-core fiber gas laser operating at 4.3 \u03bcm. The experimental data include measured laser output power under different pump powers, gas pressures, and absorption lines. The numerical data consist of simulation results obtained from a rate-equation model incorporating fiber propagation loss, pressure-dependent collisional relaxation, and realistic hollow-core fiber parameters. Together, these datasets enable quantitative comparison between experiment and simulation and support the validation and optimization of watt-level mid-infrared hollow-core fiber gas lasers."