Diode-pumped thin-disk Nd:GdVO4 laser at 893 nm

Abstract

We report for the first time a Nd:GdVO4 laser operating in a continuous wave (CW) on the quasi-three-level laser at 893 nm, based on the 4F3/2 – 4I9/2 transition, generally used for a 912 nm emission. The use of a pump module with 16 passes through the crystal allowed the realization of a Nd:GdVO4 thin-disk laser with 157 mW of CW output power at 893 nm. Moreover, intracavity second-harmonic generation (SHG) has also been achieved with a power of 23 mW at 447 nm by using a BiB3O6 (BiBO) nonlinear crystal.

Spectroscopic characterization and diode-pumped 910 nm laser of Nd:LiLuF4 crystal

“…During the past few years quasi-three level 4 F 3/2 4 I 9/2 laser transition near 900 nm of the Nd 3+ ion has attracted much attention [1][2][3][4][5][6]. This laser has some important applications such as water vapor dif ferential absorption lidar.…”

High efficiency 1341 nm Nd:GdVO4 bounce laser in-band pumped at 879 nm

“…A well known representa tive is Nd:YVO 4 , which has been widely used both in research and commercial devices. Another vanadate crystal, Nd:GdVO 4 , which was confirmed to be supe rior to Nd:YVO 4 in thermal properties, was also inves tigated extensively [22][23][24][25][26][27][28][29][30][31][32]. A more efficient pumping method was presented recently, which was to pump the Nd 3+ ions directly into the 4 F 3/2 upper lasing level.…”

Diode-pumped Nd:LGS laser emitting at 888 nm

“…These blue lasers are effi cient and powerful, nevertheless their wavelengths are too high compared to the 442 nm He-Cd laser. Recently, by frequency doubling the emission based on the 4 F 3/2 -4 I 9/2 transition of Nd doped crystals, deep blue lasers close to 442 nm were obtained [28][29][30][31][32]. Nd:…”