Abstract:Aiming at the problem that the power stability control of high-power pumped laser in atomic spin inertial measurement system has power-polarization coupling and the control accuracy is difficult to improve, A laser power stabilization control scheme based on Tapered Amplifier (TA) was designed by directly adjusting the pumping TA injection current, the high power laser power was stably controlled. The result demonstrates that compared with the pumped laser power before adding stable power, the trend term drift is significantly suppressed, and the 10-second Allen standard deviation is reduced by about 75%. This method can suppress the polarization power coupling spectral error, realize the decoupling control of laser power and frequency, and effectively improve the stability of laser power