Mid-infrared photoluminescence in small-core fiber of praseodymium-ion doped selenide-based chalcogenide glass
Mid-infrared photoluminescence in small-core fiber of praseodymium-ion doped selenide-based chalcogenide glass
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DOI：
10.1364/ome.5.000870
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发表时间：
2015-04
影响因子：
2.8
通讯作者：
Zhuoqi Tang;D. Furniss;M. Fay;H. Sakr;L. Sójka;N. Neate;N. Weston;S. Sujecki;T. Benson;A. Seddon
中科院分区：
文献类型：
--
作者：
Zhuoqi Tang;D. Furniss;M. Fay;H. Sakr;L. Sójka;N. Neate;N. Weston;S. Sujecki;T. Benson;A. Seddon
稀土 (RE) 离子掺杂硫族化物玻璃对于运行 >4 μm 的中红外 (MIR) 光纤激光器很有吸引力。我们之前的模型表明，镨 (Pr) 是一种合适的稀土离子掺杂剂，用于实现在 4-5 μm 波长下工作的硒化物、硫系玻璃、阶跃折射率光纤 (SIF) MIR 光纤激光器。稀土离子掺杂硫属化物玻璃纤维的制造，特别是具有小芯的玻璃纤维，是一个要求很高的过程，因为在实现成型所需的热处理过程中必须避免结晶。在此，报道了具有 10 μm 或 15 μm 直径芯的 500 ppmw（按重量计百万分之一）Pr3+ 掺杂的 Ge-As-Ga-Se 玻璃 SIF；包层玻璃为Ge-As-Ga-Se-S。概述了生产纤维的多阶段过程。纤芯/包层的热学和光学特性。报道了玻璃对，以及小芯光纤的结晶/非晶性质和光学行为。首次报道了稀土离子掺杂硫族化物玻璃小芯光纤的中红外光致发光和寿命。
Rare earth (RE)-ion doped chalcogenide glasses are attractive for mid-infrared (MIR) fiber lasers for operation >4 μm. Our prior modeling suggests that praseodymium (Pr) is a suitable RE-ion dopant for realizing a selenide-based, chalcogenide-glass, step index fiber (SIF) MIR fiber laser operating at 4-5 μm wavelength. Fabrication of RE-ion doped chalcogenide glass fiber, especially with a small core, is a demanding process because crystallization must be avoided during the heat treatments required to effect shaping. Here, a 500 ppmw (parts per million parts, by weight) Pr3+-doped Ge-As-Ga-Se glass SIF with a 10 μm or 15 μm diameter core is reported; the cladding glass is Ge-As-Ga-Se-S. The multistage process to produce the fiber is outlined. Thermal and optical properties of the core/clad. glass pair, and the crystalline/amorphous nature and optical behavior of the small core fiber are reported. MIR photoluminescence and lifetime of a RE-ion doped chalcogenide glass small core fiber are reported for the first time.