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As2Se3 glass fibers measuring 250μm in diameter were fabricated based on different draw processing parameters, including preform dropping temperatures (T1=Tg+ΔT, ΔT=20, 30, 40, 50°C), fiber-drawing temperatures (T2=Tg+ΔT, ΔT=10, 20, 50°C), and drawing speeds. Raman spectra indicated crystallization on fiber surface at high temperatures. After fiber drawing, oxygen was detected on fiber surface by...
This work experimentally demonstrates the supercontinuum (SC) generation in a three-hole arsenic free Ge20Sb15Se65 chalcogenide suspended-core fiber. Mechanical drilling was used to prepare the chalcogenide glass preform, which was drawn into suspended-core fibers. The zero-dispersion wavelength of the fiber is moved toward the shorter wavelength of about 3.2μm through changing the fiber core diameter...
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