A New Ge/F−Co-doped SMF with Enhanced SBS Threshold Fabricated by PCVD  

作　　者：LIU Tian TONG Wei-Jun ZHANG Fang-Hai ZHANG Xin-Ben DAI Neng-Li LI Jin-Yan 刘甜;童维军;张方海;张心贲;戴能利;李进延(Wuhan National Laboratory of Optoelectronics,Huazhong University of Science and Technology,Wuhan 430074;State Key Laboratory,Yangtze Optical Fiber and Cable Company Ltd.,Wuhan 430074)

机构地区：[1]Wuhan National Laboratory of Optoelectronics,Huazhong University of Science and Technology,Wuhan 430074 [2]State Key Laboratory,Yangtze Optical Fiber and Cable Company Ltd.,Wuhan 430074

出　　处：《Chinese Physics Letters》2011年第10期116-118,共3页中国物理快报（英文版）

基　　金：Supported by the National High-Technology Research and Development Program of China(2011AA030201).

摘　　要：A new single-mode fibre(SMF)with high stimulated Brillouin scattering(SBS)threshold which is co-doped with GeO_(2) and F_(2) in the core is reported.To increase the SBS threshold,the acousto−optic effective area is increased by designing a transverse acoustic waveguide and adjusting the doping level of GeO2 and F2 while the designed fiber retains a step optical refractive index profile.The optimal design is found by numerical simulation and the optimal fiber is fabricated by a plasma−activated chemical vapor deposition(PCVD)process.It yields the threshold 6.79 dB,which is higher than the conventional single-mode fiber G.652 and 3dB higher than the Corning®SMF−28e+^(™)optical fiber with NexCor®technology.

关 键 词：fiber WAVEGUIDE scattering 

分 类 号：TN2[电子电信—物理电子学]