Bidirectional polarization splitting couplers based on dielectric-coated metallic gratings
Document Type
Journal Article
Publisher
IEEE Press
Faculty
Faculty of Health, Engineering and Science
School
Electron Science Research Institute
RAS ID
17407
Abstract
A new bidirectional polarization splitting coupler based on a metal thin film perforated with periodic slits and coated with dielectric is proposed and theoretically investigated. The back-side incident light coupled to the metal-dielectric-air waveguide is split and launched into TM plasmonic and TE photonic modes simultaneously. The operation principle is clarified and theoretically illustrated using the fully vectorial aperiodic Fourier modal method. Polarization extinction ratios better than 15 dB and crosstalk less than 15 dB are achieved for both polarizations over C-band ranging from 1530 to 1570 nm.
DOI
10.1109/LPT.2013.2274073
Comments
Lu, F., Xiao, F. , Li, K., Wang, Z., & Xu, A. (2013). Bidirectional polarization splitting couplers based on dielectric-coated metallic gratings. IEEE Photonics Technology Letters, 25(17), 1695-1698. Available here (c) 20xx IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.