摘要
We investigate the coupling characteristics of photonic crystal fiber composed of two cores with different index profiles. The index curves of the fundamental modes of the two cores can cross at a desired wavelength by choosing appropriate index profiles of the cores. As a result, wavelength-selective coupling is achieved. The designed coupler can be applied as an oDtical fiber bandstop filter with 26-nm bandwidth.
We investigate the coupling characteristics of photonic crystal fiber composed of two cores with different index profiles. The index curves of the fundamental modes of the two cores can cross at a desired wavelength by choosing appropriate index profiles of the cores. As a result, wavelength-selective coupling is achieved. The designed coupler can be applied as an oDtical fiber bandstop filter with 26-nm bandwidth.
基金
supported by the Senior Talent Foundation of Jiangsu University (No.06JDG062)
the China Postdoctoral Science Foundation (No.20080441070)
the Jiangsu Planned Projects for Postdoctoral Research Funds (No.0802018B)
the National Natural Science Foundation of China (Nos.10574058 and 50735001)
the Natural Science Foundation of the Jiangsu Higher Education Institutions of China (No.08KJB510001)
