Watt-level ~2 μm laser output in Tm3+-doped tungsten tellurite glass double-cladding fiber.
Identifieur interne : 000426 ( Ncbi/Checkpoint ); précédent : 000425; suivant : 000427Watt-level ~2 μm laser output in Tm3+-doped tungsten tellurite glass double-cladding fiber.
Auteurs : Kefeng Li [République populaire de Chine] ; 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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