LED (Light Emitting Diode) lighting equipments can be redeveloped and employed to not only just illumination, but also can wirelessly send audio data for users. In order to make an LED bulb has two channels for stable lighting and high-quality communicates, we used LEDs with different wavelengths, which are visible light for illuminations (including dimming and toning) and infrared for data tra...

Abstract—Personal optical wireless communication is a promising solution for increasing the available communication bandwidth within a room. This technology can offer, with line of sight and diffuse propagation, very high-speed communication between portable devices. This paper presents a generic line of sight, wide line of sight (LOS/WLOS) propagation model and a diffuse (DIF) propagation mode...

White LEDs were invented the 1990’s. The white LED has lower power consumption, lower voltage requirements, longer lifetime, smaller size, faster response, and cooler operation. We have proposed an indoor visible light wireless communication system that utilizes multiple white LED lighting equipment. In this system, the equipment is used not only for illuminating rooms but also for an optical w...

In this paper, an enhancement design of communication system using optical radio frequency (RF) waves in free space optical communication (FSO) system is presented. To our knowledge, it is the first time that the effect of Gamma-Gamma turbulent channel model on the performance of the proposed system is analyzed and simulated. To obtain an optical communication system with good performance and h...

Visible Light Communication (VLC) has gained great interest in the last decade due to the rapid developments in Light Emitting Diodes (LEDs) fabrication. Efficiency, durability and long life span of LEDs make them a promising residential lighting equipment as well as an alternative cheap and fast data transfer equipment. Appliance of visual light in data communication by means of LEDs has been ...

Jingjing Sun, Cheng Yin,* Changping Zhu, Xianping Wang, Wen Yuan, Pingping Xiao, Xianfeng Chen, and Zhuangqi Cao Department of Physics, the State Key Laboratory on Fiber Optic Local Area Communication Networks and Advanced Optical Communication Systems, JiaoTong University, Shanghai, 200240 China Jiangsu Key Laboratory of Power Transmission and Distribution Equipment Technology, Hohai Universit...

The dramatic growth in Optical Communication Networks in most developed countries and also in South Africa, desperately needs skilled human resources (engineers) for design, operation and maintenance of these sophisticated networks. With only 8 ECSA accredited engineering schools in South Africa, we are faced with a huge shortage in suitably qualified engineers. Proper education in Optical Netw...

To provide a safe and reliable technique for rotor blade inspection, the lightning damages caused by any metal equipment inserted into the blade have to be eliminated. This paper, therefore, deals with an approach that consequently avoids any metal cables by applying optical fibers both for data communication as well as for the power supply. The used sensor network is specialized in acoustic em...

waveguides with low confinement loss, low chromatic dispersion, and low nonlinear effects are used in optical communication systems. optical fibers can also be employed in such systems. besides optical fibers, photonic crystal fibers are also highly suitable transmission media for optical communication systems. in this paper, we introduce two new designs of index-guiding photonic crystal fiber ...