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12 March 2019 Effects of F- on the optical properties of Yb3+-doped large mode area silica fiber prepared by sol-gel method
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Abstract
Yb-Al co-doped rod glass introducing with F- as the large core of photonic crystal fiber (PCF) was prepared by solgel method combined with high temperature sintering, and the rod without F- was fabricated as the comparison. The refractive index and homogeneity of the rods, and the attenuation, laser properties of the fibers have been investigated to confirm the effects of F- in the fibers. The results show that introducing F- in the fiber core can obviously decrease the refractive index of Yb3+ doped silica glass, and the beam quality of the PCF has been greatly improved by the lower NA of core.
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Meng Wang, Chunlei Yu, Suya Feng, Shikai Wang, Lei Zhang, Fengguang Lou, Danping Chen, and Lili Hu "Effects of F- on the optical properties of Yb3+-doped large mode area silica fiber prepared by sol-gel method", Proc. SPIE 11023, Fifth Symposium on Novel Optoelectronic Detection Technology and Application, 110233R (12 March 2019); https://doi.org/10.1117/12.2521708
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