Generation of squeezed vacuum on cesium D2 line down to kilohertz range<xref rid="cpb_26_12_124206_fn1" ref-type="fn">*</xref> <fn id="cpb_26_12_124206_fn1"> <label>*</label> <p>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.</p> </fn>

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.

Tian Jian-Feng¹, Zuo Guan-Hua², Zhang Yu-Chi^{2, †}, Li Gang¹, Zhang Peng-Fei¹, Zhang Tian-Cai¹

(color online) Measured noise spectra for (curve a) anti-squeezed light, (curve b) the SQL, (curve c) squeezed light after correction of the electronic noise (15 dB below the SQL) of the HD system. RBW = 100 Hz, VBW = 10 Hz. Sweep time = 19.6 s. All traces are averaged over 10 times.