Fluorescence feedback control of an active Q-switched diode-pumped Nd:YVO4 laser.
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.
Xie
W
W
Photonics Research Group, School of Electrical and Electronic Engineering, Nanyang Technological University, Nanyang Avenue, Singapore. P145520398@ntu.edu.sg
Lam
Y L
YL
Chan
Y C
YC
Tam
S C
SC
Gu
J
J
Zhou
F
F
Yang
H
H
Zhao
G
G