Mid-infrared supercontinuum generation spanning from 1.9 to 5.7 μm in a chalcogenide fiber taper with ultra-high NA

作者：Wang, Yingying; Dai, Shixun^*; Peng, Xuefeng; Zhang, Peiqing; Wang, Xunsi; You, Chenyang

来源：Infrared Physics & Technology, 2018, 88: 102-105.

DOI：10.1016/j.infrared.2017.09.007

• Chalcogenide glass
• Fiber design and fabrication
• Fiber taper
• Nonlinear optics
• Supercontinuum generation

We report a broadband supercontinuum generation in a chalcogenide fiber taper with an ultra-high numerical aperture. The chalcogenide step-index fiber consisting of As2Se3 core and As2S3 cladding was fabricated by using the isolated stacked extrusion method. The fiber taper with a core diameter of 1.75 mu m was prepared by employing a homemade tapering setup. By pumping the fiber taper with a ferntosecond laser pulses at 3.3 gm, a broadband supercontinuum generation spanning from 1.9 to 5.7 mu m was achieved.

• 出版日期2018-1
• 单位宁波大学