Dual-loss-modulated Q-switched and mode-locked YVO(4)/Nd:YVO(4)/KTP green laser with EO and Cr(4+):YAG saturable absorber.
By simultaneously employing the electro-optic (EO) modulator and Cr(4+):YAG saturable absorber, a diode-pumped dual-loss-modulated Q-switched and mode-locked (QML) YVO(4)/NdYVO(4)/KTP green laser is presented. In comparison with the singly passively QML green laser with Cr(4+):YAG, the dual-loss-modulated QML green laser with EO and Cr(4+):YAG can generate more stable pulse train with deeper modulation depth, shorter pulse width, greater pulse energy and higher peak power. For the dual-loss-modulated QML green laser, at a pump power of 18 W and a repetition rate of 1 kHz, the pulse width and the pulse energy of the Q-switch envelope as well as the peak power of QML green laser are 42.1 ns, 360 microJ and 382 kW, respectively, corresponding to the pulse width compression 62%, the pulse energy improvement 10 times and the QML peak power increase 40 times when compared with that of the singly passively QML green laser.
Li
Tao
T
College of Information Science and Engineering, Shandong University, Jinan, Shandong 250100, China.
Zhao
Shengzhi
S
Zhuo
Zhuang
Z
Yang
Kejian
K
Li
Guiqiu
G
Li
Dechun
D
D017076:Computer-Aided Design; D004735:Energy Transfer; D004867:Equipment Design; D019544:Equipment Failure Analysis; D007834:Lasers; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*