A tunable corner-pumped Nd:YAG/YAG composite slab CW laser

Abstract

A corner-pumped Nd:YAG/YAG composite slab continuous-wave laser operating at 1064 nm, 1074 nm, 1112 nm, 1116 nm, and 1123 nm simultaneously and a laser that is tunable at these wavelengths are reported for the first time. The maximum output power of the five-wavelength laser is 5.66 W with an optical-to-optical conversion efficiency of 11.3%. After a birefringent filter is inserted in the cavity, the five wavelengths can be separated successfully by rotating the filter. The maximum output powers of the 1064 nm, 1074 nm, 1112 nm, 1116 nm, and 1123 nm lasers are 1.51 W, 1.3 W, 1.27 W, 0.86 W, and 0.72 W, respectively.

High stability and low noise laser-diode end-pumped Nd: YAG ceramic passively Q-switched laser at 1123 nm based on a Ti3C2T x -PVA saturable absorber

“…To address mode competition from 1112 nm and 1116 nm, the implementation of Fabry-Perot (F-P) etalons or birefringent crystal (BC) placed according to Brewster angle proves effective in suppression. [13][14][15] However, the higher losses associated with the use of F-P etalons often result in lower output power and optical-to-optical conversion efficiency of the 1123 nm laser. When using BC, it becomes critical to accurately adjust the Brewster angle and the angle between the BC surface and the optical axis of the 1123 nm spectral light.…”

Single, composite, and ceramic Nd:YAG 946-nm lasers

“…The composite crystal and ceramic were both proved to be effective in reducing thermal effect of the 946-nm lasers. [5][6][7][8][9][10] Moreover, the ceramic has the advantage of the high doping concentration level, which can further balance out the low stimulatedemission cross section influence. Therefore the ceramic has become a more promising candidate for a 946-nm laser.…”