Title :
Study of Passive Q-switch Mode-Locked Characteristic of Pulse LD Pump Nd: YVO4/Cr4+:YAG
Author_Institution :
Dept. of Phys., Dezhou Univ., Dezhou, China
Abstract :
Mode-locked characteristic in different cavity length and pump power has been compared in experiments and the main factors which affect the mode-locking have been discussed. By analysing the experimental results, the author gets the following conclusion: we can realize the Q-switch mode-locked laser output by using pulse LD pump Nd:YVO4/Cr4+:YAG. When the cavity length is shorter, we can only realize the Q-switch laser output, as cavity length and power density increase, we realize the Q-switch mode-locked laser output. The best mode-locked state reaches when cavity length is 170 mm. As Cavity length is 190 mm, due to thermal effects, mode-locking becomes unstable.
Keywords :
Q-switching; chromium; laser cavity resonators; laser mode locking; neodymium; solid lasers; thermo-optical effects; yttrium compounds; YVO4:Nd-YAG:Cr; cavity length; laser Q-switching; laser mode locking; passive Q-switching; power density; pump power; size 170 mm; size 190 mm; thermal effects; Laser excitation; Laser mode locking; Laser tuning; Mirrors; Neodymium; Optical pulses; Power lasers; Pump lasers; Space vector pulse width modulation; Switches; Cr4+:YAG; Nd:YVO4; Q-switch mode-locked;
Conference_Titel :
Environmental Science and Information Application Technology, 2009. ESIAT 2009. International Conference on
Conference_Location :
Wuhan
Print_ISBN :
978-0-7695-3682-8
DOI :
10.1109/ESIAT.2009.448
