title: Fluorescence feedback control of an active Q-switched diode-pumped Nd:YVO4 laser.
abstract: We have implemented active feedback control in a Q-switched diode-pumped Nd:YVO(4) laser by monitoring the fluorescence intensity from the laser crystal. When the initial inversion level indicated by the detected fluorescence has reached a predetermined value, Q switching is initiated. This scheme allowed us to vary the reproducibility of the output pulse peak power and pulse width. The novel active Q-switching approach can reduce the shot-to-shot variations of the output pulse peak power and the pulse width.
authors.affiliation: Photonics Research Group, School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore. P145520398@ntu.edu.sg
authors.forename: W
authors.initials: W
authors.lastname: Xie
authors.forename: Y L
authors.initials: YL
authors.lastname: Lam
authors.forename: Y C
authors.initials: YC
authors.lastname: Chan
authors.forename: S C
authors.initials: SC
authors.lastname: Tam
authors.forename: J
authors.initials: J
authors.lastname: Gu
authors.forename: F
authors.initials: F
authors.lastname: Zhou
authors.forename: H
authors.initials: H
authors.lastname: Yang
authors.forename: G
authors.initials: G
authors.lastname: Zhao