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 in...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.展开更多
基金Supported by the National High-Technology Research and Development Program of China(2011AA030201).
文摘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.
