1. Ultrafast Pulse Generation for Er- and Tm- Doped Fiber Lasers With Sb Thin Film Saturable Absorber
- Author
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Hao Yuan, Jinzhang Wang, Peiguang Yan, Junzi Li, Jintao Wang, Jinde Yin, Xianglong Zeng, Hao Chen, Tingchao He, Rong Yang, Chunyu Guo, and Shuangchen Ruan
- Subjects
business.product_category ,Materials science ,business.industry ,Doping ,Pulse duration ,Saturable absorption ,Sputter deposition ,Atomic and Molecular Physics, and Optics ,Fiber laser ,Microfiber ,Optoelectronics ,Thin film ,business ,Ultrashort pulse - Abstract
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 μm 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 μm and 2 μm wavebands were mode locked by a single microfiber-based Sb thin film SA.
- Published
- 2020
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