2026-10-15T01:33:45Z https://www.scidb.cn/oai

10.57760/sciencedb.23747 2025-04-17T13:45:29Z

2025-04-17 Mid-infrared supercontinuum based on heterogeneous fiber cascade and inline amplification doi:10.57760/sciencedb.23747 en We propose a mid infrared spectral broadening and broadband amplification technology based on heterogeneous fiber optic systems. Using step index As2S3 fiber, a wide continuous spectrum covering 1.9 to 3.6 μ m was generated at pump energies as low as 0.8 nJ. Coupling erbium-doped fluorozirconate fiber with sulfur based fiber for amplification at around 2.8 μ m, resulting in a frequency band spectrum covering 1.9 to 4.1 μ m. The optical power in the 2.7 to 3 μ m band accounts for 73.2% of the total output power, significantly higher than the proportion in the original continuous spectrum (12.6%). This system provides an all fiber solution for spectral shaping of mid infrared supercontinuum spectra.  supercontinuum generation; mid-infrared laser; Cr:ZnS laser; fluoride fiber amplifier Wu Weibo Yu Xinchen Wang Yuchen An Tinghui Zhang Xiyue Yang Zhiyong Li Xiao Hou Jing Tang Pinghua Zhang Long Jiang Yiguang PUBLIC https://creativecommons.org/licenses/by-nc-nd/4.0/ dataset Science Data Bank