Experimental study of the generation of a blue laser by intracavity frequency doubling of a cw Nd:GdVO4 laser with lithium borate.
Efficient cw intracavity frequency doubling of a diode end-pumped Nd:GdVO4 laser that operates in the 4F(3/2) --> 4I(9/2) transition at 912 nm is demonstrated. A 15 mm long lithium borate crystal, cut for critical type I phase matching at room temperature, was used for second harmonic generation of the fundamental laser. A maximum output power of 14.8 W in the deep blue spectral range at 456 nm was achieved at an incident pump power of 40 W. In 2 h we achieved an optical-to-optical conversion efficiency of 37% with a better than 2.57% power stability.
Quan
Zheng
Z
Changchun Institute of Optics, Fine Mechanics, and Physics, Chinese Academy of Sciences, Changchun, Jilin 130033, China. pseudo-bear020121212@yahoo.com.cn
Yi
Yao
Y
Bin
Li
L
Kai
Zhou
Z
Yang
Liu
L
Ling
Zhao
Z
D001881:Borates; D005682:Gadolinium; D053844:Lasers, Solid-State; D018020:Lithium Compounds; D009354:Neodymium; D055096:Optical Devices; D055620:Optical Phenomena; D017968:Vanadium Compounds
D001881:Borates; D018020:Lithium Compounds; D017968:Vanadium Compounds; D009354:Neodymium; D005682:Gadolinium; C021051:lithium borate