Measurements of ${\varphi }_s$ at the LHCb experiment

These proceedings present the current status of measurements of the CP-violating phase $ph{i}_s$ by the LHCb collaboration, reviewing the measurements in channels such as $B_s^0\to J\mathrm{/}\psi \varphi$, $B_s^0\to J/\psi \pi^+\pi^-$and$B_s^0 \to \psi(2S)\phi$\mathrm{.}Theobservationofthe$B_s^0\to\eta_c\phi$ decay mode is presented for the first time, which can be used to measure ${\varphi }_s$ with larger data samples that will be collected over the coming years by the LHCb experiment. Finally, the expected increase in precision from LHCb measurements of ${\varphi }_s$ over the next decade is presented.