The results demonstrate the robustness of the integrated optical wireless link in propagating OFDM-RoF-based WLAN signals across optical fibers. The proposed system can operate on different RF bands using different modulation schemes like 4.16 and 64QAM that may be associated to OFDM and multidata rates up to 5 Gbps. The design of the proposed OFDM-RoF system is aimed at supporting mm-wave services and multi-standard operations.
#Self phase modulation using optisystem Patch
The outline for integrating an optical technology and wireless in a single system was provided with the existence of OFDM-RoF technology and the microstrip patch antenna these were applied in the Optisystem communication tool. An optical OFDM-RoF-based wireless local area network (W-LAN) system has been studied and evaluated in this work. Being a multicarrier technique, the orthogonal frequency division multiplexing (OFDM) can be applicable in hybrid optical-wireless systems design owing to its best spectral efficiency for the interferences of radio frequency (RF) and minor multipath distortion. The greatest advantages of optical fibers are the possibility of extending data rate transmission and propagation distances. In this article is studied and simulated in OPTISYSTEM the propagating of solitons to rates of Gbps through standard single mode fiber (SSMF, Standard Single Mode Fiber) and dispersion shifted fiber (DSF, Dispersion Shifted Fiber) as well as dispersion compensating fibers (DCF, Dispersion Compensating Fiber) over tens of thousands of kilometers, with the aim of analyzing its behavior and improvement in the performance of the transmission. Solitons are formed by the balance between dispersive effects (GVD, Group Velocity Dispersion) and nonlinear (SPM, Self Phase Modulation), in optical communication systems based in solitons, they can be applied in distances of several thousand of kilometers with a large capacity to carry information with use of optical amplifiers. One solution to this problem is the use of solitons, which maintain the shape of the pulse after propagation over long distances. En este artículo se estudia y simula en OPTISYSTEM la propagación de los solitones a velocidades de varios Gbps a través de fibras monomodo estándar (SSMF, Single Mode Optical Fiber) y fibras monomodo de dispersión desplazada (DSF, Dispersion Shifted Fiber), en conjunto con fibras compensadoras de dispersión (DCF, Dispersion Compensating Fiber), sobre decenas de miles de kilómetros, con el objetivo de analizar su comportamiento y mejora en el desempeño de la transmisión.Ībstract: Because of the need to transmit as much information at high speeds and long distances is necessary to mitigate the phenomenon of dispersion in a fiber, which is a big problem in optical communication systems. Los solitones se forman debido al balance entre los efectos dispersivos (GVD, Group Velocity Dispersion) y no lineales (SPM, Self Phase Modulation) en sistemas de comunicación ópticos basados en solitones, estos pueden ser aplicados en distancias de varios miles de kilómetros con una gran capacidad para transportar información con el uso de amplificadores ópticos. Una solución a este problema es el uso de solitones, los cuales mantienen la forma del pulso después de propagarse por grandes distancias. Resumen: Debido a la necesidad de transmitir mayor cantidad de información a velocidades elevadas y sobre grandes distancias es necesario mitigar el fenómeno de la dispersión en una fibra, el cual es un gran problema en sistemas de comunicación óptica. Short link range between the transmitter and receiver can optimize the FSO system transmission parameters or components. From the result analysis, FSO wavelength with 1550 nm produces less effect in atmospheric attenuation. The results of these analyses are to develop a system of quality-free space optics for a high data rate transmission. The main objective of this article is to evaluate the quality of data transmission using Wavelength Division Multiplexing (WDM) with highlighting several factors that will affect the quality of data transmission. A well-known disadvantage of FSO is its sensitivity on local weather conditions-primarily to haze and rain, resulting in substantial loss of optical signal power over the communication path. Free space optics system suffers from various limitations. Free Space Optics Systems (FSO) is one of the most effective solutions, especially for atmospheric turbulence due to the weather and environment structure.
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