Power scalable and efficient 790-nm pumped Tm3+-doped fiber lasers

Gavin P. Frith; David G. Lancaster

doi:10.1117/12.660932

23 February 2006 Power scalable and efficient 790-nm pumped Tm³⁺-doped fiber lasers

Gavin P. Frith, David G. Lancaster

Proceedings Volume 6102, Fiber Lasers III: Technology, Systems, and Applications; 610208 (2006) https://doi.org/10.1117/12.660932
Event: Lasers and Applications in Science and Engineering, 2006, San Jose, California, United States

Abstract

This report presents a discussion of the engineering issues and results of high power 2μm Tm³⁺-doped fibre lasers pumped at 790nm. To date we have achieved up to 85W from such devices with 54% slope efficiency relative to launched pump. More recently, through using Tm³⁺ concentrations of approximately 4(wt.)% to enhance the cross-relaxation process (³H₄,³H₆->³F₄,³F₄) we have demonstrated slope efficiencies of up to 67% relative to launched power. This represented ~170% quantum slope efficiency for the 790nm pumped 2μm laser.

Citation Download Citation

Gavin P. Frith and David G. Lancaster "Power scalable and efficient 790-nm pumped Tm³⁺-doped fiber lasers", Proc. SPIE 6102, Fiber Lasers III: Technology, Systems, and Applications, 610208 (23 February 2006); https://doi.org/10.1117/12.660932

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