Analysis of the interaction-length dependence of frequency stability in an iodine-stabilized Nd:YAG laser

作者：Shogo Matsunaga, Rei Kato, Mayuko Yoshiki, Daisuke Akamatsu, Feng-Lei Hong · 发表于：Applied Optics · 年份：2024 · DOI：10.1364/ao.515683 · 被引用次数：3 · 研究领域：Advanced Fiber Laser Technologies、Solid State Laser Technologies、Advanced Frequency and Time Standards

We report a numerical simulation and an experimental study on the interaction-length dependence of frequency stability in an iodine-stabilized neodymium-doped yttrium aluminum garnet (Nd:YAG) laser. A saturation spectroscopy model was used in the simulation to calculate the interaction-length dependence of the linewidth and signal-to-noise ratio of the iodine saturation spectrum. We determined that 2 m was the optimal interaction length for laser-frequency stabilization. We confirmed the simulation results by performing modulation transfer spectroscopy and laser-frequency stabilization using 45-cm- and 2-m-long iodine cells and multipass configurations. The results of this study are useful for designing compact and highly stable iodine-stabilized lasers.