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2001•Advanced Solid-State LasersRequires access

Diode-pumped 1-W continuous-wave Er:YAG 3-µm laser

Da-Wun Chen, Curt L. Fincher, Todd S. Rose, F. L. Vernon, Penny A. Fields

Open publisher page 5 citations

Abstract

We have demonstrated 1.15 W of Gaussianlike (M2 = 2) cw output at 2.94 µm from a diode laser end-pumped monolithic laser crystal composed of Er-doped yttrium aluminum garnet (YAG) bonded to undoped YAG. The laser was pumped with two polarization-coupled 2.5-W flared laser diodes that provided a 45-µm pump waist with a low N.A. ( <0.04). Output at 2.94 µm was generated with a 34% slope efficiency and a greater-than- unity quantum efficiency.

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What this paper is about

We have demonstrated 1.15 W of Gaussianlike (M2 = 2) cw output at 2.94 µm from a diode laser end-pumped monolithic laser crystal composed of Er-doped yttrium aluminum garnet (YAG) bonded to undoped YAG. The laser was pumped with two polarization-coupled 2.5-W flared laser diodes that provided a 45-µm pump waist with a low N.A. ( <0.04). Output at 2.94 µm was generated with a 34% slope efficiency and a greater-than- unity quantum efficiency.

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OpenAlex reports 5 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

We have demonstrated 1.15 W of Gaussianlike (M2 = 2) cw output at 2.94 µm from a diode laser end-pumped monolithic laser crystal composed of Er-doped yttrium aluminum garnet (YAG) bonded to undoped YAG. The laser was pumped with two polarization-coupled 2.5-W flared laser diodes that provided a 45-µm pump waist with a low N.A. ( <0.04). Output at 2.94 µm was generated with a 34% slope efficiency and a greater-than- unity quantum efficiency.

Key concepts: Materials science, Laser, Diode, Continuous wave, Optoelectronics, Diode-pumped solid-state laser, Optical pumping, Optics

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