Title :
Determination of Thermal Lensing and Dynamic Operating Point of Quasi-Concentric Laser Resonator With Line-Shaped End-Pumping Profile: The Influence of
Beam
Author :
Gong, Mali ; Fu, Xing ; Wang, Qi
Author_Institution :
Dept. of Precision Instrum. & Mechanology, Tsinghua Univ., Beijing, China
Abstract :
The numerical modeling of the thermal lensing effect is investigated for the quasi-concentric laser resonator with a line-shaped end-pumping profile, in which the thermal focal power sensitively depends on the TEM00 mode size at the thermal lens. Based on the modeling, a design method for the dynamic operating point of the laser is introduced, providing the theoretical basis and explanation of the experimental implementation of stable laser performance with the operating point at the subcritical region.
Keywords :
laser beams; laser cavity resonators; laser modes; laser stability; optical design techniques; optical pumping; thermal lensing; TEM00 beam size; dynamic operating point; laser stability; line-shaped end-pumping; quasiconcentric laser resonator; thermal focal power; thermal lensing; Laser beams; Laser excitation; Laser modes; Lenses; Optical resonators; Slabs; Thermal lensing; ${rm TEM}_{00}$ mode; Line-shaped pumping; thermal lensing;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2010.2053520