Title :
Longitudinally modes characteristics of Ince-Gaussian beams in laser resonators with quadratic-index active medium
Author :
Elahi, P. ; Nadgaran, H. ; Fard, F. Kalantari
Author_Institution :
Phys. Dept., Bu-Ali Sina Univ., Hamadan, Iran
Abstract :
The characteristics of longitudinal modes of Ince-Gaussian beams in diode-pumped solid state lasers when affected by temperature-dependent change of refractive index was studied. Explicit expressions for the change of refractive index when the laser crystal exposed to a top-hat radiation together with its effects on the longitudinal phase shift were derived. The derivations were applied to Nd:YVO4 crystal and the variations of phase shift versus input power and laser pumping radius were investigated.
Keywords :
laser beams; laser cavity resonators; laser modes; neodymium; optical materials; optical pumping; refractive index; solid lasers; thermo-optical effects; yttrium compounds; Ince-Gaussian beam characteristics; YVO4:Nd; diode-pumped solid state lasers; laser crystal; laser power; laser pumping; laser resonators; longitudinal phase shift effects; longitudinally modes characteristics; quadratic-index active medium; refractive index change; temperature-dependent change; top-hat radiation exposure; Educational institutions; Laser beams; Laser excitation; Laser modes; Laser theory; Laser transitions; Partial differential equations; Pump lasers; Refractive index; Solid lasers;
Conference_Titel :
Advanced Optoelectronics and Lasers, 2005. Proceedings of CAOL 2005. Second International Conference on
Print_ISBN :
0-7803-9130-6
DOI :
10.1109/CAOL.2005.1553865
