Generation of squeezed vacuum on cesium D2 line down to kilohertz range Project supported by the National Natural Science Foundation of China (Grant Nos. 11634008, 61227902, 11574187, and 11674203), the National Key Research and Development Program of China (Grant No. 2017YFA0304500), and the Fund of “1331 Project” Key Subjects Construction of Shanxi Province, China. |
(color online) Parametric gain versus pump power, where solid line represents the theoretical simulation results and solid circles denote experimental results. |