We successfully fabricated a short-length active fiber based on fluorophosphate (FP) laser glass by the rod-in-tube technique and fiber drawing process. The base FP laser glass composition, 20Al(PO₃)₃-40BaF₂-40SrF₂ was used for making glass fiber with appropriate core and clad profiles. The physical, thermal, optical, and spectroscopic properties of core and clad materials were optimized in order to implement FP laser glass for active glass fiber fabrication. The difference of refractive index and the glass transition temperature between core and clad glass ingots was obtained to be close to 0.004 and 6 °C, respectively. The spectroscopic properties of FP laser glasses were also derived. The gain and gain coefficient of the indigenously fabricated glass fiber were measured to be 10.29 dB and 0.60 dB/cm at 1550 nm from a 17 cm bare fiber, respectively. The results direct that the short length active fiber based on FP laser glass could be useful for compact all-optical fiber amplifier at 1.5 μm.

我们通过棒管技术和纤维拉伸工艺成功地制造了一种基于氟磷酸盐（FP）激光玻璃的短长度活性纤维。基础FP激光玻璃成分20Al（PO ₃）₃ -40BaF ₂ -40SrF ₂用于制造具有适当纤芯和包层轮廓的玻璃纤维。为了实现用于有源玻璃纤维制造的FP激光玻璃，对芯和包层材料的物理，热，光学和光谱特性进行了优化。芯和包层玻璃锭之间的折射率和玻璃化转变温度的差分别接近0.004和6℃。还推导了FP激光玻璃的光谱特性。相对于17 cm裸光纤，在1550 nm处测量的本地制造玻璃纤维的增益和增益系数分别为10.29 dB和0.60 dB / cm。结果表明，基于FP激光玻璃的短长度有源光纤可用于1.5μm的紧凑型全光纤放大器。