论文标题
部分可观测时空混沌系统的无模型预测
Frequency stabilization of a 739 nm laser to an $I_2$ spectrum for trapped Ytterbium ions
论文作者
论文摘要
我们将739 nm Ti：蓝宝石激光器的频率稳定为$^{127} I_ {2} $ b（1）-x（11）p（11）p（11）p（11）p（11）p（11）p（11）p（11）p（11）p（11）p（11）p（70）的频率稳定。当激光频率稳定时，可以实现$ 3.83 \ times 10^{ - 11} $平均时间的频率稳定性。观察到的分子碘的超细过渡是锁定被困ytterbium离子实验中使用的激光器的理想频率参考，因为其第二个谐波频率是$^{2} s _ {\ frac {\ frac {1} {2}} {2}}} {2}} {2} p _ {2} p _ {2}离子在369.5 nm。通过研究由于碘蒸气压力和激光功率引起的线扩展效应，将锁定优化为该碘过渡的理论信号与噪声比（TSNR）。
We report on the frequency stabilization of a 739 nm Ti:sapphire laser to a hyperfine component of the $^{127}I_{2}$ B(1)-X(11) P(70) transition using acousto-optic modulation transfer spectroscopy (MTS). A frequency stability of $3.83\times 10^{-11}$ around 13 s averaging time is achieved when the laser frequency is stabilized. The observed hyperfine transition of the molecular iodine is an ideal frequency reference for locking the lasers used in experiments with trapped ytterbium ions, since its second harmonic frequency is the $^{2}S_{\frac{1}{2}}-^{2}P_{\frac{1}{2}}$ transition of the ytterbium ion at 369.5 nm. By investigating the line broadening effects due to the iodine vapor pressure and laser power, the locking is optimized to the theoretical signal to noise ratio (TSNR) of this iodine transition.
