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Frampton, Ken E.
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document
Developing single-mode tellurite glass holey fiber for infrared nonlinear applications
Abstract
We review our progress on developing single-mode tellurite glass holey fiber for infrared nonlinear applications. Tellurite glass preforms with complex holey structure were fabricated by using glass extrusion technique. The fabrication of single mode tellurite holey fibers with the effective mode area ranging from 2.6-3000 µm2 and the effective nonlinearity gamma ranging from 0.23-280 W-1km-1 were demonstrated. By controlling the microstructured features in the holey cladding, the dispersion profile and the zero dispersion wavelength of this type of single material optical fiber were tailored within a broad range. Broadband 1.0-2.5 µm supercontinuum spectra were generated from the fabricated fibers by using femtosecond laser. Attenuation due to the impurities, such as transition metal ions, rare-earth ions and hydroxyl group, were also investigated in the bulk tellurite glass and fiber from visible to mid-infrared regimes.