Experimental data for paper 'Optical characterization of excited-state spin Hamiltonians and clock transitions in Tm$^{3+}$:YAlO$_{3}$'

Here we upload the data for the paper 'Optical characterization of excited-state spin Hamiltonians and clock transitions in Tm$^{3+}$:YAlO$_{3}$'. The dataset includes the measurements of enhanced nuclear Zeeman splitting, quadratic Zeeman shift, and related spectral hole measurements. Detailed description can be found in the paper.