In-band Pumping of Tm: LiYF4 Channel Waveguide: A Power Scaling Strategy for ~2 µm Waveguide Lasers

Pavel Loiko; Romain Thouroude; Rémi Soulard; Gurvan Brasse; Jean-Louis Doualan; Blandine Guichardaz; Alain Braud; Aleksey Tyazhev; Ammar Hideur; Mathieu Laroche; Patrice Camy

2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference
OSA Technical Digest (Optica Publishing Group, 2019),
paper ca_3_4

In-band Pumping of Tm: LiYF₄ Channel Waveguide: A Power Scaling Strategy for ~2 µm Waveguide Lasers

Pavel Loiko, Romain Thouroude, Rémi Soulard, Gurvan Brasse, Jean-Louis Doualan, Blandine Guichardaz, Alain Braud, Aleksey Tyazhev, Ammar Hideur, Mathieu Laroche, and Patrice Camy

The European Conference on Lasers and Electro-Optics 2019

Munich Germany
23–27 June 2019
ISBN: 978-1-7281-0469-0

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Waveguide lasers (ca_3)

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P. Loiko, R. Thouroude, R. Soulard, G. Brasse, J. Doualan, B. Guichardaz, A. Braud, A. Tyazhev, A. Hideur, M. Laroche, and P. Camy, "In-band Pumping of Tm: LiYF4 Channel Waveguide: A Power Scaling Strategy for ~2 µm Waveguide Lasers," in 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, OSA Technical Digest (Optica Publishing Group, 2019), paper ca_3_4.

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Abstract

Waveguide (WG) lasers emitting in the eye-safe spectral range of ~2 µm are of interest for spectroscopy, optical communications and sensing applications. Such emission is typically achieved using Thulium (Tm³⁺) ions (the ³F₄ → ³H₆ transition). In the traditional pumping scheme, Tm³⁺ ions are excited at ~0.8 µm (to the ³H₄ state) and high laser efficiency can be reached due to the cross-relaxation process, ³H₄ + ³H₆ → ³F₄ + ³F₄ [1]. In the present work, we aimed to demonstrate a power-scaling strategy for Tm WG lasers utilizing in-band pumping scheme.

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