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首页> 外文期刊>Photonics Journal, IEEE >Optical Properties of Chromium and Erbium Co-Doped Alumina–Germania–Calcia–Yttria–Silica Based Fiber
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Optical Properties of Chromium and Erbium Co-Doped Alumina–Germania–Calcia–Yttria–Silica Based Fiber

机译：铬和b共掺杂氧化铝-德国-氧化钙-氧化硅-二氧化硅基光纤的光学性质

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摘要

We report the fabrication details and optical characterization of novel Erbium (Er) and Chromium (Cr) co-doped alumina-germania-calcia-yttria-silica fiber. Co-doping with Er and Cr is chosen as potentially promising for enhancing the fiber's fluorescent and amplifying potential in the near-infrared (NIR) region at 'resonant' (viz. into Er band absorption maximum, @976 nm) and 'non-resonant' (viz. off Er band while into Cr broad absorption band, @905/1064 nm) excitations. Our results reveal strong coupling, at both kinds of excitation, of Er- and Cr- subsystems in the fiber. This effect is justified by the presence of pronounced 1.5-1.6 mu m emission, characteristic to Er ions, at 905/1064 nm excitations and, at 976-nm excitation, by notable spectral broadening of the fiber's NIR fluorescence and gain, comprising the lines inherent to Er3+ (1.5-1.6 mu m) and Cr3+/Cr4+ (1.15-1.45 mu m), as compared to purely Er-doped silicate fiber, exemplified here by commercial 'L20' (Er20-4/125) and 'L40' (Er40-4/125) fibers.
机译：我们报告了新型details（Er）和铬（Cr）共掺杂的氧化铝-锗-氧化钙-氧化钇-二氧化硅纤维的制造细节和光学特性。选择掺有Er和Cr的潜在掺杂有望增强纤维在“共振”（即Er波段吸收最大值，@ 976 nm）和“非-”处的近红外（NIR）区域的荧光和放大潜力。共振”激发（即进入Er宽谱带，进入Cr宽吸收带，@ 905/1064 nm）激发。我们的结果表明，在两种激发下，光纤中Er-和Cr-子系统之间都存在强耦合。通过在905/1064 nm激发下以及在976 nm激发下显着的光谱增宽（包括线），在905/1064 nm激发下存在明显的Er离子特征的1.5-1.6μm发射，证明了这种效果。与纯掺Er的硅酸盐纤维相比，Er3 +（1.5-1.6μm）和Cr3 + / Cr4 +（1.15-1.45μm）固有的存在，在这里以商品化的'L20'（Er20-4 / 125）和'L40'为例（Er40-4 / 125）纤维。

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