在铷原子气室中实现了饱和吸收谱稳频法和消多普勒的双色谱稳频法,以给在建的原子干涉重力仪系统选择合适的激光稳频方法。介绍了两种稳频方法的基本原理及实验细节。通过调整光路设计、自制低噪声光电探测器以及应用数字锁定模块,获得了良好的鉴频误差信号。每种方法都搭建了两套稳频系统并在3000s采集时间内保持锁定。激光器在经饱和吸收法和消多普勒双色谱法锁定后,激光频率波动分别为16.2kHz和31.4kHz,相应于在10s采样时间下分别获得4.21×10~(-11)和8.18×10~(-11)的频率稳定度;相比之下,激光器自由运转时,频率波动和稳定度分别为629kHz和1.64×10-9。在原子重力仪系统小型化的需求下详述了两种稳频方法的优缺点,比较而得消多普勒的双色谱稳频法在原子干涉重力仪的小型化模块化发展方向不失为具有潜力的一种选择。 Saturated Absorption Spectrometry and Doppler Frequency Shift Spectroscopy were implemented in a Rubidium atomic gas chamber to select a suitable laser frequency stabilization method for the atomic interferometry gravimeter system under construction. The basic principles and experimental details of two frequency stabilization methods are introduced. By adjusting the optical path design, self-made low-noise photodetector and digital lock module, a good frequency error signal was obtained. Each method has set up two sets of frequency stabilization system and keep the lock in the 3000s acquisition time. After the lasers were locked by saturation absorption and Doppler doublechromatography, the laser frequency fluctuations were 16.2 kHz and 31.4 kHz, respectively, corresponding to 4.21 × 10 ~ (-11) and 8.18 × 10 ~ (-11) frequency stability; In contrast, the laser free running, the frequency fluctuations and stability were 629kHz and 1.64 × 10-9. The advantages and disadvantages of the two frequency stabilization methods are detailed under the requirement of the miniaturization of atomic gravimeter system. The comparison of the two-color spectrum stabilization method with elimination Doppler has the potential in the miniaturization and modular development of atomic interference gravimeter A choice.