Co-doped Tm,Ho:GdVO<sub>4</sub> laser end-pumped by 808nm laser diode

Xingbao Zhang; Youlun Ju; Yuezhu Wang

doi:10.1117/12.667146

23 December 2005 Co-doped Tm,Ho:GdVO₄ laser end-pumped by 808nm laser diode

Xingbao Zhang, Youlun Ju, Yuezhu Wang

Proceedings Volume 6028, ICO20: Lasers and Laser Technologies; 60280N (2005) https://doi.org/10.1117/12.667146
Event: ICO20:Optical Devices and Instruments, 2005, Changchun, China

Abstract

In this paper, we report a diode pumped Tm,Ho:GdVO₄ laser operating at cryogenic temperature, which has 3.5W of 2-μm output. Tm,Ho:GdVO₄ crystal has very stronger and broader absorption spectrum than Tm-Ho co-doped YLF and YAG, and very favorable for diode pumping. The fiber-coupled laser diode of 808nm (core diameter 0.4mm,N.A 0.22) is a pumping source to end-pumping Tm,Ho:GdVO₄ crystal. The optical-optical conversion efficiency of 34% and threshold pump power of 0.79W has been achieved. The laser design and laser performance is described.

Citation Download Citation

Xingbao Zhang, Youlun Ju, and Yuezhu Wang "Co-doped Tm,Ho:GdVO₄ laser end-pumped by 808nm laser diode", Proc. SPIE 6028, ICO20: Lasers and Laser Technologies, 60280N (23 December 2005); https://doi.org/10.1117/12.667146

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