Study of Passive Q-switch Mode-Locked Characteristic of Pulse LD Pump Nd: YVO4/Cr4+:YAG

Author

Liu, Hui-Lan

Author_Institution

Dept. of Phys., Dezhou Univ., Dezhou, China

Volume

3

fYear

2009

fDate

4-5 July 2009

Firstpage

621

Lastpage

623

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Environmental Science and Information Application Technology, 2009. ESIAT 2009. International Conference on

Conference_Location

Wuhan

Print_ISBN

978-0-7695-3682-8

Type

conf

DOI

10.1109/ESIAT.2009.448

Filename

5199771