912 nm laser operation in diode-pumped grown-together composite Nd:GdVO4/GdVO4 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.…”

Continuous-wave Nd:GdVO4/LBO laser at 541.5 nm under diode pumping into the emitting level

“…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. The research to output wavelengths involving Nd:GdVO 4 crystals were mostly focused at 1063 nm [16][17][18][19][20][21][22][23][24][25][26][27][28][29][30], 1341 nm [31][32][33][34][35][36][37], and 912 nm [38][39][40][41][42][43]. However, through the analysis of a spectroscopic study has demonstrated that there are three or four emission bands on the F 3/2 -I 11/2 transition of Nd:GdVO 4 crystal.…”

Power scaling of single-longitudinal-mode Nd:GdVO4laser at 1342 nm

“…Of course, the thermal lensing effect can be corrected by special cavity design, and the thermally induced birefringence can be neglected for birefringent laser crystal, but the thermally induced diffraction losses and thermal fracture are difficult to eliminate. In recent years, a composite laser medium has been proven to provide a very effective way to reduce thermal effects [10,17,18]. By diffusion bonding the undoped end caps to the doped laser medium, on one hand, the diffusion bond can provide an uninhibited heat flow from the doped to the undoped region; on the other hand, the undoped end caps can prevent the doped pump face from expanding along its axis, therefore no surface deformation takes place at this interface, that results in the higher thermal fracture limit pump power.…”