High extinction‐ratio microstructure fiber based on chalcogenide glasses. Issue 11 (14th June 2021)

• Record Type: Journal Article
• Authors: Xu, Tiesong; Zhong, Minghui; Liang, Xiaolin; Liu, Jia; Yan, Bin; Xiao, Jing; Jiao, Kai; Wang, Xiange; Si, Nian; Pan, Zhongda; Zhao, Zheming; Wang, Xunsi; Zhang, Peiqing; Nie, Qiuhua; Bai, Shengchuang; Wang, Rongping; Zhang, Junjie
• Is Part Of: Journal of the American Ceramic Society. Volume 104:Issue 11(2021)
• Page Start: 5671
• Page End: 5678
• Publication Date: 2021-06-14
• Subjects: chalcogenide -- extinction ratio -- microstructure -- polarization‐maintaining; Ceramics -- Periodicals; 620.1405
• DOI: 10.1111/jace.17936
• Languages: English
• ISSNs: 0002-7820

Abstract

Abstract: Extinction ratio (ER) is one of the important parameters to characterize the polarization‐maintaining (PM) performance of the fiber. In this paper, we report the preparation and properties of a novel chalcogenide microstructure fiber with a high ER. We fabricate a preform using a peeled‐off extrusion method. The core and cladding material of the fiber are Ge9 As23 Se68 and Ge10 As22 Se68 . The preform was drawn into a fiber with an average ER of −17.08 dB. The loss of the fiber is less than 2 dB over 5.20–8.55 μm, and the minimum loss of the fiber is 0.57 dB/m at 6.2 μm. Moreover, a flat mid‐infrared supercontinuum spectrum spanning from 1.53 to 12.50 μm is generated by pumping an 18‐cm‐long PM fiber for the first time.