Sensitivity improvement of nuclear magnetic resonance gyroscope with natural abundance of Xe gas

We investigated on the operation of Nuclear Magnetic Resonance gyroscope(NMRG) using two different isotopes of natural abundance of Xe gas, $^{\mathrm{129}}$Xe and $^{\mathrm{131}}$Xe independently and simultaneously. Rb atoms are used to make Xe hyperpolarized via spin-exchange interactions which is highly affected by the optical pumping rate of Rb and the spin exchange rate between the two atoms. In this work, we present a sensitivity measurement results of NMRG using natural abundance Xe depending on the spin polarization degree of Xe adjusted by optical pump power and vapor cell temperature changes.