Diode-pumped efficient high-power cascade Tm:GdVO4 laser simultaneously operating at ∼2 μm and ∼2.3 μm

Xiaoxu Yu; Zhongben Pan; Hongwei Chu; Han Pan; Shengzhi Zhao; Dechun Li

doi:10.1364/OE.497230

Diode-pumped efficient high-power cascade Tm:GdVO₄ laser simultaneously operating at ∼2 μm and ∼2.3 μm

Opt Express. 2023 Jul 31;31(16):26368-26377. doi: 10.1364/OE.497230.

Authors

Xiaoxu Yu, Zhongben Pan, Hongwei Chu, Han Pan, Shengzhi Zhao, Dechun Li

PMID: 37710499
DOI: 10.1364/OE.497230

Abstract

The laser diode (LD)-pumped efficient high-power cascade Tm:GdVO₄ laser simultaneously operating on the ³F₄ → ³H₆ (at ∼2 μm) and ³H₄ → ³H₅ (at ∼2.3 μm) Tm³⁺ transition was first reported in this paper. The cascade Tm:GdVO₄ laser generated a maximum total continuous-wave (CW) laser output power of 8.42 W with a slope efficiency of 40%, out of which the maximum ∼2.3 μm CW laser output power was 2.88 W with a slope efficiency of 14%. To our knowledge, 2.88 W is the highest CW laser output power amongst the LD-CW-pumped ∼2.3 μm Tm³⁺-doped lasers reported so far.