本文报导了中国计量科学研究院研制的碘稳定的氦氖激光器的结构和性能,以及稳定性、复现性的测量结果。取样时间为1秒、10秒和100秒的频率稳定性分别为2×10~(-11)、6×10~(-12)和2×10~(-12)。根据分量“d”至“j”平均的测量拍频,确定出两台激光器的频差。频率复现性优于±4×10~(-11)。 This paper reports the structure and properties of iodine-stabilized He-Ne laser developed by China Institute of Metrology, as well as the stability and reproducibility of the measured results. The sampling time was 1 second, and the frequency stability of 10 seconds and 100 seconds were 2 × 10 ~ (-11), 6 × 10 ~ (-12) and 2 × 10 ~ (-12), respectively. Based on the measured beat frequencies averaged from component “d” to “j”, the frequency difference between the two lasers is determined. The frequency reproducibility is better than ± 4 × 10 ~ (-11).