MA Yong,ZOU Hui,WEI Wei.A novel polarization splitter based on octagonal dual-core photonic crystal fiber[J].Optoelectronics Letters,2016,12(4):257-260 A novel polarization splitter based on octagonal dual-core photonic crystal fiber Author Name Affiliation MA Yong  School of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China  ZOU Hui  School of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China  WEI Wei  School of Optoelectronic Engineering, Nanjing University of Posts and Telecommunications, Nanjing 210023, China  Abstract:       A novel polarization splitter based on octagonal dual-core photonic crystal fiber (O-D-PCF) is proposed. The impacts of several fiber parameters on the coupling characteristics of the polarization splitter are investigated by full-vectorial finite element method (FV-FEM) in detail. Through optimizing the fiber configuration, a 4.267-mm-long polarization splitter with a bandwidth of 37 nm is achieved, and its extinction ratio (ER) is as high as 81.2 dB at the wavelength of 1.55 μm. Compared with the hexagonal dual-core photonic crystal fiber (H-D-PCF) based polarization splitter, both ER and bandwidth of the O-D-PCF based one are effectively improved. Hits: 3534 Download times: 0 View Full Text    Download reader