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2010•Quantum ElectronicsRequires access

Effect of active-ion concentration on holmium fibre laser efficiency

А.С. Курков, Е.М. Шолохов, A.V. Marakulin, L A Minashina

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Abstract

We have measured the fraction of holmium ions that relax nonradiatively to the ground level as a result of interaction at a metastable level in optical fibres with a silica-based core doped with holmium ions to 2 × 10 19 — 2 × 10 20 cm -3 . The percentage of such ions has been shown to depend on the absolute active-ion concentration. The fibres have been used to make a number of 2.05-μm lasers, and their slope efficiency has been measured. The laser efficiency decreases with increasing holmium concentration in the fibres

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We have measured the fraction of holmium ions that relax nonradiatively to the ground level as a result of interaction at a metastable level in optical fibres with a silica-based core doped with holmium ions to 2 × 10 19 — 2 × 10 20 cm -3 . The percentage of such ions has been shown to depend on the absolute active-ion concentration. The fibres have been used to make a number of 2.05-μm lasers, and their slope efficiency has been measured. The laser efficiency decreases with increasing holmium concentration in the fibres

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Available abstract

We have measured the fraction of holmium ions that relax nonradiatively to the ground level as a result of interaction at a metastable level in optical fibres with a silica-based core doped with holmium ions to 2 × 10 19 — 2 × 10 20 cm -3 . The percentage of such ions has been shown to depend on the absolute active-ion concentration. The fibres have been used to make a number of 2.05-μm lasers, and their slope efficiency has been measured. The laser efficiency decreases with increasing holmium concentration in the fibres

Key concepts: Holmium, Ion, Materials science, Metastability, Laser, Core (optical fiber), Neodymium, Analytical Chemistry (journal)

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