title: Observation and optimization of 4He atomic polarization spectroscopy.
abstract: Polarization spectroscopy in (4)He around 1083 nm is observed and optimized with a distributed feedback fiber laser and is applied for frequency stabilization. In order to improve the accuracy and long-term stability of the frequency-locking performance, a power stabilization module is added, and the dependences of the peak-to-peak amplitude and frequency difference (width) of the polarization spectroscopy signal on various pump and probe powers are investigated.
authors.affiliation: State Key Laboratory of Advanced Optical Communication Systems and Networks, School of Electronics Engineering and Computer Science, Peking University, Beijing, China.
authors.forename: Teng
authors.initials: T
authors.lastname: Wu
authors.forename: Xiang
authors.initials: X
authors.lastname: Peng
authors.forename: Wei
authors.initials: W
authors.lastname: Gong
authors.forename: Yuanzhi
authors.initials: Y
authors.lastname: Zhan
authors.forename: Zaisheng
authors.initials: Z
authors.lastname: Lin
authors.forename: Bin
authors.initials: B
authors.lastname: Luo
authors.forename: Hong
authors.initials: H
authors.lastname: Guo