Modulation transfer spectroscopy of coherent population trapping based on phase-coherent lasers.
A new source of two diode laser beams, spatially separated but optically phase-locked with each other, is used to study the modulation transfer spectroscopy of coherent population trapping resonance (CPT). The spectrum for the (87)Rb D2 line is obtained with narrow linewidth and high signal-to-noise ratio, and analyzed with different experimental parameters. A theoretical analysis of the CPT modulation transfer spectra is deduced from the density matrix equation of motion, and found to be in good agreement with the experimental results.
Qi
Xiang Hui
XH
Institute of Quantum Electronics, School of Electronics Engineering and Computer Science, Peking University, Beijing, 100871, China.
Chen
Wen Lan
WL
Yi
Lin
L
Zhou
Xiao Ji
XJ
Chen
Xu Zong
XZ
D000465:Algorithms; D003198:Computer Simulation; D017076:Computer-Aided Design; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007368:Interferometry / Q000295:instrumentation*; D054023:Lasers, Semiconductor; D008962:Models, Theoretical; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013057:Spectrum Analysis / Q000295:instrumentation*; D013997:Time Factors