Compact design of a polarization beam splitter based on silicon-on-insulator platform. (20th September 2018)

• Record Type: Journal Article
• Authors: Butt, M A; Khonina, S N; Kazanskiy, N L
• Is Part Of: Laser physics. Volume 28:Number 11(2018:Nov.)
• Publication Date: 2018-09-20
• Subjects: polarization beam splitter -- integrated optics -- directional coupler -- C-band -- silicon waveguide; Lasers -- Periodicals; 621.36605
• DOI: 10.1088/1555-6611/aadf18
• Languages: English
• ISSNs: 1054-660X

Abstract

Abstract: In this paper, a compact design of a polarization beam splitter is proposed, based on the principle of a directional coupler. A bridge waveguide is placed between two conventional silicon waveguide directional couplers. The optimized length of the bridge waveguide is obtained at 11 µ m, where the directional coupler acts as a polarization beam splitter. As a result, maximum polarization extinction ratios of 20.32 dB and 15.4 dB are obtained for the TE- and TM-modes, respectively, at a 1536 nm wavelength.