Chinese Optics Letters, 2015, 13 (s1): S11301, Published Online: Jan. 29, 2015
Y-type polarization beam splitter based on polarization-selective defects within crystal waveguides in a square-lattice photonic crystal with solid rods Download: 949次
130.3120 Integrated optics devices 130.5296 Photonic crystal waveguides 230.5440 Polarization-selective devices 230.1360 Beam splitters
Abstract
We propose a Y-type polarization beam splitter based on internal polarization-selective defects within crystal waveguides in a two-dimensional square-lattice photonic crystal with solid rods. When the nonpolarized light launches from the input port, different polarizations will be separated and can only transmit through their own channel. It is demonstrated by finite element method that the proposed structure can achieve good performance for both the transverse electric and transverse magnetic polarizations in a wide range of wavelength, with the polarization extinction ratio more than 25 dB, the degree of polarization nearly 1, and the insert loss less than 0.5 dB, respectively.
Mi Lin, Xin Jin, Zhengbiao Ouyang, Guoliang Zheng, Guohua Wen. Y-type polarization beam splitter based on polarization-selective defects within crystal waveguides in a square-lattice photonic crystal with solid rods[J]. Chinese Optics Letters, 2015, 13(s1): S11301.