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Optical fiber technology v.39, 2017년, pp.26 - 31   SCI SCIE
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Fabrication and characterization of chalcogenide polarization-maintaining fibers based on extrusion

Jiang, Ling (Laboratory of Infrared Material and Devices, The Research Institute of Advanced Technologies, College of Information Science and Engineering, Ningbo University, Ningbo 315211, China ) ; Wang, Xunsi (Laboratory of Infrared Material and Devices, The Research Institute of Advanced Technologies, College of Information Science and Engineering, Ningbo University, Ningbo 315211, China ) ; Guo, Fangxia (Laboratory of Infrared Material and Devices, The Research Institute of Advanced Technologies, College of Information Science and Engineering, Ningbo University, Ningbo 315211, China ) ; Wu, Bo (Laboratory of Infrared Material and Devices, The Research Institute of Advanced Technologies, College of Information Science and Engineering, Ningbo University, Ningbo 315211, China ) ; Zhao, Zheming (Nanhu College, Jiaxing University, Jiaxing 314001, China ) ; Mi, Nan (Laboratory of Infrared Material and Devices, The Research Institute of Advanced Technologies, College of Information Science and Engineering, Ningbo University, Ningbo 315211, China ) ; Li, Xing (Laboratory of Infrare ) ; Dai, Shixun ; Liu, Zijun ; Nie, Qiuhua ; Wang, Rongping ;
  • 초록  

    Abstract The fabrication and characterization of IR chalcogenide polarization-maintaining (PM) step-index optical fibers with elliptical-core and 1-in-line-core have been reported for the first time. An improved isolated co-extrusion method was used to fabricate these core-shaped PM fibers. The elliptical core had a horizontal radius of a=3.66μm, vertical radius of b=1.83μm and the 1-in-line core of a=4.83μm, b=1.42μm, respectively. Single-mode PM beam spots were observed for the elliptical-core and 1-in-line-core fibers in the near-field energy distributions. The highest values of birefringence of the elliptical-core and 1-in-line-core fibers are 2.09×10 −4 at 2.7μm and 3.272×10 −4 at 2.8μm, respectively. The extinction ratios of −3.7dB and −2dB were achieved in fibers of 0.5m long with elliptical-core and 1-in-line-core, respectively. Highlights Two kinds of polarization-maintaining chalcogenide fibers (PMF) were prepared by an isolated co-extrusion method. The differences between elliptical-core and 1-in-line-core fibers were systematically investigated, such as the polarization-maintaining ability and their correlations. The extinction ratio measurements were performed with comparisons and lively illustrations.


  • 주제어

    Chalcogenide glasses .   Extrusion .   Fibers .   Polarization-maintaining .   Elliptical-core .   1-in-line-core .   Extinction ratio.  

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