All-solid-state dual end pumped YVO:Nd/LBO blue laser with 21.8 W output power at 457 nm.

Ling, Zhao; Yi, Yao; Yang, Zhao; Quan, Zheng

It is reported the efficient compact deep-blue laser at 457 nm generation by intracavity frequency doubling of a continuous wave (CW) laser operation of a diode-pumped YVO:Nd laser on the F → I transition at 914 nm. An LBO crystal, cut for critical type I phase matching at room temperature is used for second harmonic generation (SHG) of the laser. With dual end pump configurations at total incident pump power of 60 W, as high as 21.8 W of CW output power at 457 nm is achieved with 20-mm-long LBO. The optical-to-optical conversion efficiency is up to 36.3%, and the power stability in 8 h is better than 2.36%.

NEODYMIUM compounds; BLUE laser pumping; CONTINUOUS wave lasers; SECOND harmonic generation; ENERGY consumption; OPTICAL properties of metals

Optics & Spectroscopy, 2014, Vol 116, Issue 3, p470

0030-400X

Academic Journal

10.1134/S0030400X14030278