High efficiency operation of Tm:Y2O3 ceramic laser in-band pumped at 1620 nm

Weiwei Huang; Fei Wang; Deyuan Shen; Jun Wang; Dingyuan Tang

doi:10.1117/12.2602547

9 October 2021 High efficiency operation of Tm:Y₂O₃ ceramic laser in-band pumped at 1620 nm

Weiwei Huang, Fei Wang, Deyuan Shen, Jun Wang, Dingyuan Tang

Proceedings Volume 11890, Advanced Lasers, High-Power Lasers, and Applications XII; 118900T (2021) https://doi.org/10.1117/12.2602547
Event: SPIE/COS Photonics Asia, 2021, Nantong, JS, China

Abstract

We report on high power and efficient laser operation of low scattering loss Tm:Y₂O₃ ceramic fabricated in house via coprecipitation process. The Tm³⁺ ion is pumped directly to the upper energy level of the ~ 2 μm laser transition (³F₄ → ³H₆) using a high power 1620 nm fiber Raman laser. With an optically polished but uncoated sample of 2 at.% doping, the laser generated 11.3 W of TEM₀₀ output power at ~2050 nm for ~19 W of absorbed pump power, corresponding to a slope efficiency of 74.4% with respect to absorbed pump power.

Citation Download Citation

Weiwei Huang, Fei Wang, Deyuan Shen, Jun Wang, and Dingyuan Tang "High efficiency operation of Tm:Y₂O₃ ceramic laser in-band pumped at 1620 nm", Proc. SPIE 11890, Advanced Lasers, High-Power Lasers, and Applications XII, 118900T (9 October 2021); https://doi.org/10.1117/12.2602547

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