Watt-level ~2 μm laser output in Tm3+-doped tungsten tellurite glass double-cladding fiber.
Identifieur interne : 000464 ( PubMed/Corpus ); précédent : 000463; suivant : 000465Watt-level ~2 μm laser output in Tm3+-doped tungsten tellurite glass double-cladding fiber.
Auteurs : Kefeng Li ; Guang Zhang ; Lili HuSource :
- Optics letters [ 1539-4794 ] ; 2010.
Abstract
We report, for the first time to the best of our knowledge, a watt level cw fiber laser at ~2 μm from a piece of 40-cm-long newly developed highly thulium-doped (3.76 × 10(20) ions/cm(3)) tungsten tellurite glass double cladding fiber pumped by a commercial 800 nm laser diode. The maximum output power of the fiber laser reaches 1.12 W. The slope efficiency and the optical-optical efficiency with respect to the absorbed pump are 20% and 16%, respectively. The lasing threshold is 1.46 W, and the lasing wavelength is centered at 1937 nm.
PubMed: 21165115
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<author><name sortKey="Zhang, Guang" sort="Zhang, Guang" uniqKey="Zhang G" first="Guang" last="Zhang">Guang Zhang</name>
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<author><name sortKey="Hu, Lili" sort="Hu, Lili" uniqKey="Hu L" first="Lili" last="Hu">Lili Hu</name>
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<front><div type="abstract" xml:lang="en">We report, for the first time to the best of our knowledge, a watt level cw fiber laser at ~2 μm from a piece of 40-cm-long newly developed highly thulium-doped (3.76 × 10(20) ions/cm(3)) tungsten tellurite glass double cladding fiber pumped by a commercial 800 nm laser diode. The maximum output power of the fiber laser reaches 1.12 W. The slope efficiency and the optical-optical efficiency with respect to the absorbed pump are 20% and 16%, respectively. The lasing threshold is 1.46 W, and the lasing wavelength is centered at 1937 nm.</div>
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<Title>Optics letters</Title>
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<Abstract><AbstractText>We report, for the first time to the best of our knowledge, a watt level cw fiber laser at ~2 μm from a piece of 40-cm-long newly developed highly thulium-doped (3.76 × 10(20) ions/cm(3)) tungsten tellurite glass double cladding fiber pumped by a commercial 800 nm laser diode. The maximum output power of the fiber laser reaches 1.12 W. The slope efficiency and the optical-optical efficiency with respect to the absorbed pump are 20% and 16%, respectively. The lasing threshold is 1.46 W, and the lasing wavelength is centered at 1937 nm.</AbstractText>
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