Abstract
Photonic crystal fibers (PCFs) have been extensively used in literature for designing polarization handling devices. Further, the Si material has advantages in terms of low loss transmission with a high refractive index. In this paper, a novel design of transverse-electric (TE) pass polarizer based on Si-core photonic crystal fiber (SC-PCF) is reported and studied using full vectorial finite element method. The suggested PCF has a cladding background and is selectively filled with gold nanorods. Further, an elliptical Si-core is used to increase the birefringence between the two polarizing modes. Therefore, the surface plasmon modes around the gold nanorods are highly coupled with the quasi-transverse-magnetic (TM) core modes while no coupling occurs with the quasi-TE core mode. Consequently, high and low confinement losses are achieved for the quasi-TM and quasi-TE core modes, respectively. Accordingly, a TE-pass polarizer is realized with an insertion loss of . Additionally, a good extinction ratio of is obtained at a short device length of 29 μm.
© 2018 Optical Society of America
Full Article | PDF ArticleMore Like This
Ahmed El-Sayed Abd-Elkader, Mohamed Farhat O. Hameed, Nihal F. F. Areed, Hossam El-Din Mostafa, and Salah S. A. Obayya
J. Opt. Soc. Am. B 36(3) 652-661 (2019)
Haixia Zhu, Ran Hao, and Erping Li
Appl. Opt. 57(19) 5533-5537 (2018)
B. M. Younis, A. M. Heikal, Mohamed Farhat O. Hameed, and S. S. A. Obayya
J. Opt. Soc. Am. B 35(5) 1020-1029 (2018)