Zhu S.,Key Laboratory of Optoelectronic Information and Sensing Technologies Guangdong Higher Education Institutes |
Zhu S.,Jinan University |
Jiang W.,Key Laboratory of Optoelectronic Information and Sensing Technologies Guangdong Higher Education Institutes |
Jiang W.,Jinan University |
And 13 more authors.
Journal of Russian Laser Research | Year: 2015
We study theoretically and experimentally pulse fluctuations in a passively Q-switched laser caused by the thermal lens effect and design a special thermally insensitive cavity for an end-pumped passively Qswitched laser system with a composite crystal. We show experimentally that using a suitable cavity and maintaining the laser-system operation in the fundamental mode reduce the pulse fluctuations effectively. Under a pump power of 8 W, relative fluctuations of the pulse width and the repetition rate of this system are 2.3% and 3.5%, respectively. © 2015 Springer Science+Business Media New York