Li Xiaolu, Huang Yonglin. Birefringence properties of rectangular lattice PCF with a central defect hole in the core region[J]. 2012,(3):48-51. DOI: 10.13756/j.gtxyj.2012.03.004.
we study the birefringence properties of a rectangular lattice Photonic Crystal Fiber(PCF) with a central elliptical defect hole in the core region.The research results show that its birefringence properties are strongly dependent on wavelength and its structural parameters.Compared with similar PCF without central elliptical defect holes
the new PCF has a higher modal birefringence when the central elliptical defect hole parameters bc/Λ=0.075
ellipticity η=2.2 and cladding structural parameters Λ=2.0 μm