A 123W Nd:YVO4 slab laser with high beam quality output

Abstract

The laser diode (LD) partially end-pumped slab laser with hybrid resonator is a kind of novel solidstate laser that can achieve high power with high beam quality. Using this configuration, taking Nd:YVO 4 as the slab gain media, a 123 W output was obtained when the pumping power was 265 W, and the optical-to-optical efficiency and slope efficiency were 46.4% and 52.4%, respectively. The beam quality M 2 factors in the unstable direction and the stable direction were 1.3 at the output power of 98 W.

Laser-Diode End-Pumped Nd:YVO 4 Slab Laser under Direct Pumping into the Emitting Level

“…[8,9] By using this InnoSlab technology, we have carried out some experiments with an 808-nm LD pumping Nd:YVO 4 slab laser. [10] In this work we present a 880-nm LD partially end-pumped Nd:YVO 4 slab laser with a hybrid resonator, and obtain cw output 126.7 W under 216 W absorbed pumping power. The slop efficiency and optical-to-optical efficiency with respect to absorbed pumping power are 73.2% and 58.7%, respectively.…”