Effects of 946-nm thermal shift and broadening on Nd^(3+):YAG laser performance  

作　　者：Seyed Ebrahim Pourmand Ghasem Rezaei 

机构地区：[1]Department of Optics and Laser Engineering, Estahban Branch, Islamic Azad University [2]Department of Physics, College of Sciences, Yasouj University

出　　处：《Chinese Physics B》2015年第12期342-345,共4页中国物理B（英文版）

基　　金：Project supported by Estahban Branch,Islamic Azad University

摘　　要：Spectroscopic properties of flashlamp pumped Nd^3＋：YAG laser are studied as a function of temperature in a range from-30℃ to 60℃. The spectral width and shift of quasi three-level 946.0-nm inter-Stark emission within the respective intermanifold transitions of ^4F3/2→^4I9/2are investigated. The 946.0-nm line shifts toward the shorter wavelength and broadens. In addition, the threshold power and slope efficiency of the 946.0-nm laser line are quantified with temperature.The lower the temperature, the lower the threshold power is and the higher the slope efficiency of the 946.0-nm laser line is,thus the higher the laser output is. This phenomenon is attributed to the ion-phonon interaction and the thermal population in the ground state.Spectroscopic properties of flashlamp pumped Nd^3＋：YAG laser are studied as a function of temperature in a range from-30℃ to 60℃. The spectral width and shift of quasi three-level 946.0-nm inter-Stark emission within the respective intermanifold transitions of ^4F3/2→^4I9/2are investigated. The 946.0-nm line shifts toward the shorter wavelength and broadens. In addition, the threshold power and slope efficiency of the 946.0-nm laser line are quantified with temperature.The lower the temperature, the lower the threshold power is and the higher the slope efficiency of the 946.0-nm laser line is,thus the higher the laser output is. This phenomenon is attributed to the ion-phonon interaction and the thermal population in the ground state.

关 键 词：946-nm Nd：YAG laser thermal broadening thermal shift flashlamp pump slope efficiency threshold power 

分 类 号：TN248[电子电信—物理电子学]