Analysis of the characteristics of the polarization splitter based on tellurite glass dual-core photonic crystal fiber

作者：Liu Shuo; Li Shu Guang^*; Du Ying

来源：Optics and Laser Technology, 2012, 44(6): 1813-1817.

DOI：10.1016/j.optlastec.2012.01.004

• Fiber optics and optical communications
• Photonic crystal fibers
• Polarization splitters

A novel kind of polarization splitter based on tellurite glass dual-core photonic crystal fiber is proposed. The characteristics of the polarization splitter have been studied by the finite element method. By adjusting the ellipticity of the dual-core PCF, a very high value of birefringence can be reached. The high birefringence can increase the D-value of coupling length in the two orthogonal polarization directions, then the polarization-independent splitter can be achieved. Comparing with the SF57 glass dual-core PCF, the tellurite glass dual-core PCF has higher extinction ratio, the extinction ratio can reach -31 dB at the wavelength lambda = 1.55 mu m. The 0.36-mm-long splitter is proposed to achieve extinction ratio better than -10 dB and a bandwidth of 20 nm.

• 出版日期2012-9
• 单位燕山大学