Ultrafast Pulse Generation for Er- and Tm- Doped Fiber Lasers With Sb Thin Film Saturable Absorber
Ultrafast Pulse Generation for Er- and Tm- Doped Fiber Lasers With Sb Thin Film Saturable Absorber
复制标题
具有 Sb 薄膜可饱和吸收体的掺铒和掺铥光纤激光器的超快脉冲生成
DOI：
10.1109/jlt.2020.2977975
复制
发表时间：
2020-07-15
影响因子：
4.7
通讯作者：
Ruan, Shuangchen
中科院分区：
文献类型：
--
作者：
Wang, Jintao;Yuan, Hao;Ruan, Shuangchen
具有宽光谱范围的超快光纤激光器在许多领域有着巨大的应用需求。本文利用磁控溅射沉积（MSD）技术制备了一种新型宽带微光纤Sb薄膜可饱和吸收剂（SA），并在掺铒光纤激光器（EDFL）和掺铥光纤激光器（TDFL）中分别产生了1.5 μ m和2 μ m波段的超快脉冲。稳定锁模EDFL和TDFL的脉冲持续时间分别为544 fs/972 fs，输出功率分别为21.76 mW/36.1 mW，中心波长为1557 nm/1892 nm。据我们所知，这是第一次将包括1.5 μ m和2 μ m波段的超快光纤激光器由单个基于微光纤的Sb薄膜SA锁模。
Ultrafast fiber lasers with a wide spectral range have huge demands for many applications. In this article, magnetron sputtering deposition (MSD) technique was utilized to prepare a new broadband microfiber based Sb thin film saturable absorber (SA), and ultrafast pulses in both 1.5 and 2 mu m wavebands were generated with the integrated microfiber-based Sb thin film SA in erbium-doped fiber laser (EDFL) and thulium-doped fiber laser (TDFL), respectively. Pulse duration of 544 fs/972 fs and output power of 21.76 mW/36.1 mW centered at 1557 nm/1892 nm were respectively produced from stable mode-locked EDFL and TDFL. To the best our knowledge, this is the first time that ultrafast fiber lasers including both 1.5 mu m and 2 mu m wavebands were mode locked by a single microfiber-based Sb thin film SA.