Compact 459 nm Cs cell optical frequency standard with $2.1\times {10}^{-13}/\sqrt{\tau }$ short-term stability

Jianxiang Miao, Tiantian Shi, Jia Zhang +1

We achieve a compact optical frequency standard with an extended cavity diode laser locked to the 459 nm 6S${}_{1/2}$ - 7P${}_{1/2}$ transition of thermal ${}^{133}$Cs atoms in a $\varphi$ 10…