Step-index Si-Ge-core silica-cladded optical fibers

M. Ordu, A. Akosman, Jicheng Guo, S. Erramilli, S. Ramachandran, S. Basu
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Abstract

Si-Ge alloy-core silica-cladded fibers were drawn at a low temperature to minimize impurity diffusion. The elemental segregation in the as-drawn fibers was overcome by a thermal treatment. The transmission losses of the fibers were calculated as 28 dB/cm at $6.1 \mu \mathrm{m}$ wavelength.
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阶梯折射率硅芯硅包层光纤
在低温下拉伸硅锗合金芯硅包覆纤维,以减少杂质扩散。通过热处理克服了拉伸纤维中的元素偏析。计算光纤在$6.1 \mu \ mathm {m}$波长下的传输损耗为28 dB/cm。
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