Self-efficiency improvement and cooling in thulium-doped fibers

Cesar Jauregui; Fabian Stutzki; Jens Limpert; Andreas Tünnermann

doi:10.1117/12.2076405

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4 March 2015 Self-efficiency improvement and cooling in thulium-doped fibers

Cesar Jauregui, Fabian Stutzki, Jens Limpert, Andreas Tünnermann

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Proceedings Volume 9344, Fiber Lasers XII: Technology, Systems, and Applications; 93441Q (2015) https://doi.org/10.1117/12.2076405
Event: SPIE LASE, 2015, San Francisco, California, United States

Abstract

A way to increase the efficiency of Thulium-doped fiber systems and simultaneously prevent the generation of heat by pumping the excited state around 1460nm has been recently proposed by the authors. In this contribution we show that a Thulium-doped fiber amplifier can lase around 1460nm while simultaneously amplifying signals around ~2μm. Such an operation results in considerably higher amplification efficiencies and in lower operating temperatures without the need for an external pump around 1460nm.

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Cesar Jauregui, Fabian Stutzki, Jens Limpert, and Andreas Tünnermann "Self-efficiency improvement and cooling in thulium-doped fibers", Proc. SPIE 9344, Fiber Lasers XII: Technology, Systems, and Applications, 93441Q (4 March 2015); https://doi.org/10.1117/12.2076405

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