13.2 W cw output generated by a diode‐end‐pumped Nd:GGG laser

Abstract

Abstract:In this article, we demonstrated the continuous wave (cw) performance of a high-power diode-pumped Nd:GGG laser. The maximum output power of 13.2 W was obtained under the incident pump power of 28.8 W, giving the optical conversion efficiency of 49.5% and the slope efficiency of 51.5%. And the intrinsic loss of Nd:GGG crystal was measured to be 0.86% cm −1 in our experiment.Thermal focal length, mm

Efficient laser-diode end-pumped Nd:GGG lasers at 1054 and 1067 nm

“…The maximum output power was up to 3.92 W with a slope efficiency of 53.6% with respect to the absorbed pump power, which is comparable to that in Ref. [11] and far higher than that in Ref. [18].…”

“…Except that, Nd:GGG also has a number of advantages like the possibility to be grown in a larger size [9], a good thermal capacity of 0.38 J∕g K, etc., [10]. Therefore, over the past decade, this crystal has been widely investigated in the regimes of high-power continuous-wave operation [11], and Q-switched [12] and mode-locked [13] operations. In addition, some new laser emissions from this crystal have also been 1559-128X/14/296812-04$15.00/0 © 2014 Optical Society of America demonstrated recently [3,14].…”

Single- and multi-wavelength laser operation of a diode-pumped ND:GGG single crystal around 1.33µm

“…Nd:GGG also presents a number of very favorable properties, such as (i) a large thermal conductivity and a large thermal capacity, which is important in case of applications requiring high power laser levels [26][27][28], (ii) relatively broad absorption and emission lines while presenting relatively large absorption and emission cross sections [29], which is important for diode pumping and low threshold laser action. In fact, during the past decade, Nd:GGG has been studied and successfully operated around 1.06 mm as well as 1.33 mm either CW at medium high power levels [30,31] or pulsed in the Q-switched [19,32] and mode-locked [20] laser regimes. Some new infrared laser emissions were also reported around 1.1 mm [33], as well as the generation of green and blue laser wavelengths around 552 nm [34] and 468 nm [35] via intra-cavity nonlinear frequency doubling.…”

Crystal growth, spectral and laser properties of Nd:LuAG single crystal

“…Nd-doped crystals, such as Nd:YAG, Nd:YVO 4 , Nd:GdVO 4 , and Nd:LuVO 4 have recently attracted much attention due to their possible utilization as efficient diode pumped solid state lasers [5][6][7][8][9][10].…”