We presented the chemical mask etching method to fabricate an all-fiber cladding light stripper (CLS). The morphology and density of the micron-sized microstructures generated on the fiber surface could be flexibly controlled in fabrication process, which was beneficial to the temperature performance and high-power operation capacity of the device. Based on the method, a theoretical model was developed to optimize the structure of the CLS. Initial experimental processing parameters were also obtained to realize uniform scattering and high attenuation coefficient. An all-fiber cladding light stripper with a high attenuation coefficient of 42 dB was achieved when the stripped cladding light was 1.117 kW. The temperature rising rate was only 0.011 °C/ input-Watt under the condition of air cooling, thanks to all-fiber structure and the uniform scattering design. The average stripped power density reached 9.19 × 106 W/m2 within a 135 mm long CLS. The CLS fabricated by this technique has great application in the high power fiber laser system.

中文翻译：

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化学掩模蚀刻法制备高效光纤包层光剥离器

我们提出了化学掩模蚀刻方法来制造全光纤包层光剥离器（CLS）。纤维表面产生的微米级微结构的形态和密度可以在制造过程中灵活控制，有利于器件的温度性能和大功率运行能力。基于该方法，建立了优化CLS结构的理论模型。还获得了初始实验处理参数，以实现均匀散射和高衰减系数。当剥离包层光为1.117 kW时，实现了具有42 dB高衰减系数的全光纤包层光剥离器。空冷条件下升温速度仅为0.011℃/输入瓦特，由于全纤维结构和均匀散射设计。在 135 mm 长的 CLS 内，平均剥离功率密度达到 9.19 × 106 W/m2。该技术制备的CLS在高功率光纤激光系统中具有重要应用。