scholarly journals Single cell three-channel wavelength division multiplexing in visible light communication

2017 ◽  
Vol 25 (21) ◽  
pp. 25477 ◽  
Author(s):  
Jinyoung An ◽  
Quan Ngoc Pham ◽  
Wan-Young Chung
Keyword(s):  
Visible Light ◽  
Single Cell ◽  
Wavelength Division Multiplexing ◽  
Visible Light Communication ◽  
Wavelength Division ◽  
Channel Wavelength

A Novel Receiver in Visible Light Communication Based on RGB LEDs

2014 ◽  
Vol 543-547 ◽  
pp. 2283-2287
Author(s):  
Da Sun ◽  
Yue Gang Fu ◽  
Jing Yuan Duan ◽  
An Cun Shi
Keyword(s):  
Visible Light ◽  
Light Source ◽  
Wavelength Division Multiplexing ◽  
Communication System ◽  
High Speed ◽  
Visible Light Communication ◽  
Wavelength Division ◽  
Signal Light ◽  
Strong Ability ◽  
Collimating Lens

In this paper, we demonstrate a novel receiver in visible light communication system based on RGB LEDs. It contains three major parts the collimating lens, the spectro-device and the photodetector. The mixed RGB signal lights are captured, separated and received by the collimating lens the spectro-device and the photodetector respectively. Through the adjustment of the collimating lens, the receiver can receive enough light even if the distance between the signal light source and the receiver is changed. The receiver has the advantages of strong mobility and strong ability of receiving signal light. Based on the designed receiver the high-speed visible light communication system using RGB wavelength division multiplexing technology can have better performance.

scholarly journals A Cost-Efficient RGB Laser-Based Visible Light Communication System by Incorporating Hybrid Wavelength and Polarization Division Multiplexing Schemes

2021 ◽  
Vol 9 ◽  
Author(s):  
CAI Xiang-Peng
Keyword(s):  
Optical Fiber ◽  
Visible Light ◽  
Wavelength Division Multiplexing ◽  
Cost Effective ◽  
Visible Light Communication ◽  
Healthcare Applications ◽  
Wavelength Division ◽  
Sensor Signals ◽  
Cost Efficient ◽  
Polarization Division Multiplexing

Visible light communication (VLC) has been proven a promising technology to counter the limitations of radio frequency (RF) communication technology such as high interference and high latency issues. VLC offers high bandwidth as well as immunity to interference from other electromagnetic spectrums. Due to these features, VLC can be an excellent solution for biomedical and healthcare applications for transmission of body sensor signals and other crucial patient information. In this work, a highly efficient VLC system is designed to transmit six channels, with each one carrying 10 Gbps of data, over a 500 m optical fiber link and a 200 cm VLC link. To make the VLC system cost effective, simple and efficient on-off keying (OOK) (non-return to zero) is used as the encoding scheme. Moreover, to further enhance the capacity and bandwidth of the proposed VLC system, hybrid wavelength division multiplexing (WDM) and polarization division multiplexing (PDM) schemes are incorporated by using red, green, and blue lasers. The reported results show the successful transmission of all channels (6 × 10 Gbps) over 500 m optical fiber and 200 cm of VLC link.

Design of EDFA based 16 channel WDM system using counter directional high pump power

2021 ◽  
Vol 0 (0) ◽  
Author(s):  
Md. Asraful Sekh ◽  
Mijanur Rahim ◽  
Anjumanara Begam
Keyword(s):  
Pump Power ◽  
Wavelength Division Multiplexing ◽  
Input Power ◽  
Low Noise ◽  
Fiber Amplifiers ◽  
Wavelength Division ◽  
High Pump Power ◽  
Erbium Doped ◽  
High Pump ◽  
Channel Wavelength

Abstract In this paper, design of erbium-doped fiber amplifiers (EDFA) based 16 channel wavelength-division multiplexing (WDM) system for different pump powers and input signal levels using counter propagating pumping scheme is reported. Wavelength range between 1548 and 1560 nm in C-band with channel spacing of 0.75 nm at a bit rate of 10 Gbps are used. Input power given to all the channels is taken between −20 and −35 dBm with 3 dBm variation. Pump power levels between 100 and 500 mW at 980 nm wavelength are used. Low gain flatness with high gains and low noise figures are achieved with the proposed scheme.

Sign in / Sign up

Export Citation Format

Share Document