## Abstract The variable focal length of thermal lensing in grains of a thermally loaded Nd:YAG crystal rod have been calculated and compared with the measurements of our system. By use of the spaceβdependent rate equations, the analytical expression of the output power on the pump power, which con
Thermal lensing of diode side-pumped solid-state lasers
β Scribed by Wenjie Xie; Siu-Chung Tam; Lam Yee-Loy; Jingang Liu; Hongru Yang; Jianhui Gu; Wilson Tan; Feng Zhou
- Publisher
- Elsevier Science
- Year
- 2000
- Tongue
- English
- Weight
- 275 KB
- Volume
- 32
- Category
- Article
- ISSN
- 0030-3992
No coin nor oath required. For personal study only.
β¦ Synopsis
The pump energy distribution in a diode side-pumped solid-state laser, is an overlap of propagating Gaussian beams. A simple model has been developed to calculate the thermal focal length of a diode side-pumped solid-state laser, which is based on a thermal model with a Gaussian heat density in any cross section of a laser rod. It can be seen that as the waists of pump beams increase, the energy distribution tends to be uniform and the thermal focal length tends to be long, which means a smaller thermal focusing.
π SIMILAR VOLUMES
A green laser with output power 15 W at 515 nm is introduced, which was based on an extra-cavity frequency doubling of a corner-pumping Yb:YAG slab laser, with pulse repetition rate of 10 kHz and pulse duration of βΌ150 ns, using an acousto-optic Q-switcher. An LBO crystal was used as nonlinear cryst