Goya Kenji, Mori Akira, Tokita Shigeki, Yasuhara Ryo, Kishi Tetsuo, Nishijima Yoshiaki, Tanabe Setsuhisa, Uehara Hiyori
Faculty of Systems Science and Technology, Akita Prefectural University, 84-4 Ebinokuchi, Tsuchiya, Yurihonjo, Akita, Japan.
Institute of Laser Engineering, Osaka University, 2-6 Yamada-oka, Suita, Osaka, Japan.
Sci Rep. 2021 Mar 8;11(1):5432. doi: 10.1038/s41598-021-84950-y.
Er/Dy co-doped double-clad ZBLAN optical fiber has been used to obtain amplified spontaneous emission (ASE) broadband light sources cladding-pumped by 980-nm multimode laser diode (LD) sources. It has been demonstrated that mid-infrared broadband emission extending from 2515 to 3735 nm was obtained by energy transfer between Er and Dy. We experimentally investigated the optimum design of Er/Dy co-doped ZBLAN fiber in terms of ion concentration, fiber length, pumping configuration, and pumping power. The ASE output power was more than 2.5 mW when the LD pump power was set at 5 W. To assess its potential for gas sensing applications, the fabricated ASE light source was used to successfully detect methane gas with concentrations at 1% and 5%. The simple and stable construction of our ASE light source is suitable for practical purposes.
铒/镝共掺杂双包层ZBLAN光纤已被用于获得由980纳米多模激光二极管（LD）源进行包层泵浦的放大自发辐射（ASE）宽带光源。研究表明，通过铒和镝之间的能量转移，可获得波长范围从2515至3735纳米的中红外宽带发射。我们通过实验研究了铒/镝共掺杂ZBLAN光纤在离子浓度、光纤长度、泵浦配置和泵浦功率方面的优化设计。当LD泵浦功率设定为5瓦时，ASE输出功率超过2.5毫瓦。为评估其在气体传感应用中的潜力，所制备的ASE光源被用于成功检测浓度为1%和5%的甲烷气体。我们的ASE光源结构简单且稳定，适用于实际应用。
