DocumentCode :
22930
Title :
Nanosecond-Pulsed, Dual-Wavelength Passively Q-Switched c-Cut Nd:YVO 
Laser Using a Few-Layer Bi 
Author :
Fuqiang Jia ; Hao Chen ; Pei Liu ; Yizhong Huang ; Zhengqian Luo
Author_Institution :
Dept. of Electron. Eng., Xiamen Univ., Xiamen, China
Volume :
21
Issue :
1
fYear :
2015
fDate :
Jan.-Feb. 2015
Firstpage :
369
Lastpage :
374
Abstract :
We demonstrate for the first time, to the best of our knowledge, a dual-wavelength nanosecond-pulsed Nd:YVO4 laser passively Q-switched by a topological-insulator (TI) Bi2Se3 saturable absorber (SA). The few-layer Bi2Se3 nanosheets are fabricated by the liquid-phase exfoliation technique, and are then coated on the output mirror of a diode-pumped c-cut Nd:YVO4 laser. The synchronized Q-switching operation at 1066.6 and 1066.8 nm is successfully achieved. The Q-switched repetition rate is tunable in a wide range of 1-135 kHz, and the maximum pulse energy is obtained to be 0.56 μJ (corresponding to the peak power of 1.87 W). The obtained pulse width can be as narrow as 250 ns, which is the shortest one from the reported TI-based Q-switched lasers.
Keywords :
Q-switching; bismuth compounds; high-speed optical techniques; laser mirrors; laser tuning; nanofabrication; nanophotonics; nanostructured materials; neodymium; optical pumping; optical saturable absorption; solid lasers; topological insulators; yttrium compounds; Bi2Se3; Q-switched repetition rate; YVO4:Nd; coating; diode-pumped c-cut laser; energy 0.56 muJ; few-layer nanosheets; few-layer saturable absorber; frequency 1 kHz to 135 kHz; liquid-phase exfoliation technique; nanosecond-pulsed dual-wavelength passively Q-switched c-cut laser; output mirror; pulse energy; pulse width; synchronized Q-switching operation; time 250 ns; topological-insulator saturable absorber; wavelength 1066.6 nm; wavelength 1066.8 nm; Cavity resonators; Erbium-doped fiber lasers; Laser excitation; Laser mode locking; Mirrors; Pump lasers; Topological insulators; Q-switched lasers; dual-wavelength; saturable absorber (SA); topological insulator;
fLanguage :
English
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
Publisher :
ieee
ISSN :
1077-260X
Type :
jour
DOI :
10.1109/JSTQE.2014.2346612
Filename :
6876118
Link To Document :
