DocumentCode :
14557
Title :
Low Repetition Rate Subnanosecond Pulse Characteristics of Nd:Lu 
Y 
VO
Author :
Haijuan Zhang ; Jia Zhao ; Kejian Yang ; Shengzhi Zhao ; Tao Li ; Guiqiu Li ; Dechun Li ; Wenchao Qiao ; Yonggang Wang ; Bin Zhao
Author_Institution :
Sch. of Inf. Sci. & Eng., Shandong Univ., Jinan, China
Volume :
21
Issue :
1
fYear :
2015
fDate :
Jan.-Feb. 2015
Firstpage :
79
Lastpage :
84
Abstract :
By simultaneously employing electro-optic (EO) modulator and multiwalled carbon nanotube (MWCNT) in a doubly Q-switched mode-locked (QML) Nd:Lu0.5Y0.5VO4/KTP laser, a low repetition rate subnanosecond Nd:Lu0.5Y0.5VO4/KTP green laser with high peak power is presented. Since the repetition rate of this pulsed green laser is controlled by the EO modulator, highly stable laser pulses with low repetition rates of 1-5 kHz are obtained. As the pulse duration of this laser depends on the mode-locked pulse width underneath the Q-switched envelope, subnanosecond green laser pulses with high peak power can be generated. The average output powers, pulse widths as well as peak powers versus incident pump power under different repetition rates are measured. The shortest pulse duration of 415 ps and the highest pulse energy of 424 μJ are obtained at the repetition rate of 1 kHz, corresponding to a peak power of as high as 1022 kW. The experimental results show that the dual-loss modulation technology with EO and MWCNT in QML laser is an efficient method in generating low repetition rate subnanosecond pulse green laser.
Keywords :
Q-switching; carbon nanotubes; electro-optical modulation; laser mode locking; lutetium compounds; nanophotonics; neodymium; optical pulse generation; optical pumping; potassium compounds; solid lasers; yttrium compounds; C; EO modulator; Lu0.5Y0.5VO4:Nd-KTP; MWCNT; Q-switched envelope; doubly Q-switched mode-locked laser; dual-loss modulation technology; electro-optic modulator; energy 424 muJ; frequency 1 kHz to 5 kHz; incident pump power; low repetition rate subnanosecond pulse characteristics; low repetition rate subnanosecond pulse green laser; mode-locked pulse width; multiwalled carbon nanotube; output power; pulse duration; pulse energy; stable laser pulse; subnanosecond green laser pulse generation; time 415 ps; Electrooptic modulators; Laser excitation; Laser mode locking; Laser stability; Microchip lasers; Power lasers; Pump lasers; EO and MWCNT; doubly QML laser; low repetition rate; sub-nanosecond pulse width;
fLanguage :
English
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
1077-260X
Type :
jour
DOI :
10.1109/JSTQE.2014.2345758
Filename :
6872539
Link To Document :
