Thermal Effects in kW Nd:YAG Thin Disk Laser

Author

Yang, Huomu ; Zhang, Kai ; Cai, Zhen ; Feng, Guoying ; Wei, Yongtao ; Zhou, Shouhuan

Author_Institution

Res. Center of Opto-Electron., Sichuan Univ., Chengdu, China

fYear

2010

fDate

19-21 June 2010

Firstpage

1

Lastpage

4

Abstract

We report the Thermal lensing characterization of face cooled Nd:YAG disk laser by considering the influence of heat sink, the simulating results are compared with the results without considering the influence of substrate. according to the pump energy distribution, thermal lensing of disk under Gaussian pump, super-Gaussian pump and uniform pump are simulated. Result revealed that depolarization loss due thermal stress is very low compare to rod-shape laser, the loss could be neglected in disk worked in fundamental mode, disk deformation is the mainly component to the thermal lensing.

Keywords

heat sinks; neodymium; optical losses; optical pumping; solid lasers; thermal lensing; thermal stresses; YAG:Nd; depolarization loss; heat sink; pump energy distribution; super-Gaussian pump; thermal effects; thermal lensing; thermal stress; thin disk laser; uniform pump; Heat pumps; Heat sinks; Laser beams; Laser excitation; Laser modes; Laser noise; Power lasers; Pump lasers; Thermal lensing; Thermal stresses;

fLanguage

English

Publisher

ieee

Conference_Titel

Photonics and Optoelectronic (SOPO), 2010 Symposium on

Conference_Location

Chengdu

Print_ISBN

978-1-4244-4963-7

Electronic_ISBN

978-1-4244-4964-4

Type

conf

DOI

10.1109/SOPO.2010.5504329

Filename

5504329