All fiber structured supercontinuum source based on graded-index multimode fiber. (28th January 2022)

• Record Type: Journal Article
• Authors: Zhang, Ting; Zhang, Wei; Hu, Xiaohong; Pan, Ran; Wang, Zhenguang; Wang, Hushan; Wang, Yishan
• Is Part Of: Laser physics letters. Volume 19:Number 3(2022)
• Publication Date: 2022-01-28
• Subjects: supercontinuum generation -- graded-index multimode fiber -- stimulated Raman scatter; Lasers -- Periodicals; Physics -- Periodicals; 621.366
• DOI: 10.1088/1612-202X/ac4be7
• Languages: English
• ISSNs: 1612-2011

Abstract

Abstract: We provide an all fiber spectrally flat supercontinuum (SC) source generated by pumping a 20 m graded-index multimode fiber (MMF). The fiber pigtails of the all-fiber pump pulse laser and the MMF fused with a special method. After measuring the spectrum and the power, the output power extending from the visible to the mid-infrared is 2 W. To the best of our knowledge, this is the first watt-class and spectrally flat all fiber structured SC source based on graded-index MMF. Finally, we studied the evolution of the SC with increasing output power, which permitted us to more clearly recognize the nonlinear phenomena in the generation of the SC.