Experimental Study of Red-, Green-, and Blue-Based Light Emitting Diodes Visible Light Communications for Micro-Projector Application. Issue 3 (3rd May 2016)

• Record Type: Journal Article
• Authors: Chou, H.-H.; Liaw, S.-K.; Jiang, J.-S.; Teng, C.
• Is Part Of: Fiber and integrated optics. Volume 35:Issue 3(2016)
• Page Start: 98
• Page End: 113
• Publication Date: 2016-05-03
• Subjects: Band-pass optical filter -- equalization -- red -- green -- and blue light emitting diodes -- visible light communications; Fiber optics -- Periodicals; Integrated optics -- Periodicals; Optical communications -- Periodicals; 621.3692
• DOI: 10.1080/01468030.2015.1137106
• Languages: English
• ISSNs: 0146-8030

Abstract

ABSTRACT: In this research, an experimental short-range visible light communication link using red-, green-, and blue-based light-emitting diodes (LEDs) for portable micro-projector applications is presented. A Reconfigurable design of a post-equalizer aimed to improve the inherent narrow modulation bandwidth of red-, green-, and blue-based LEDs has been experimentally implemented, and its effectiveness with optical filters at the receiver is investigated. Reflective liquid-crystal-on-silicon-based micro-projection architecture, widely used in portable micro-projectors, was set up to evaluate the proposed visible light communication system. The measurement results demonstrated that a significant aggregative bandwidth improvement of 162 MHz as well as an aggregative data transmission rate of nearly 400 Mb/s can be achieved by using a non-return-to-zero–on-off keying (NRZ–OOK) modulation scheme based on only one polarization state of incident light without any offline signal processing.