High-terahertz-frequency carrier generation by optical pulse for radio-over-fiber applications

Abstract

In this study a new design of terahertz frequency carrier generation for radio frequency identification (RFID) application is proposed. The dense wavelength-division multiplexing can be generated and obtained by using a Gaussian or soliton pulse propagating within a modified add-drop filter known as a PANDA ring resonator. The broad bandwidth of terahertz signals can be obtained and are available for useful applications, in which the use of the generated terahertz pulses for RFID application, for instance Ad-Hoc network, uses RFID. Results obtained have shown that the increase in channel capacity can be obtained and useful for the large demand of RFID applications. C 2011 Society of Photo-Optical Instrumentation Engineers (SPIE). IntroductionThe terahertz communication technology has become a part of all communication systems as fiber optics communication, wireless communication, and RoF (radio-over-fiber). The terahertz communication has an effective data rate of 1 Tbits − 1 (Ref. 1), i.e., communicate with a terahertz carrier wave, with frequency range from 200 GHz to 10 THz. Terahertz' are generated by quantum transitions of light, which generates a very high intensity for both the transition between the electric 2 and photonic 3 sources. Terahertz is becoming important in high speed communication, one of them is RoF, where the fiberwireless (WiFi) 4 network is incorporated with the optical communication and radio frequency with wavelength division multiplexing (WDM) and millimeter wave (mm-wave) frequency. The architecture of a mm-wave fiber-wireless is central office (CO), which is connected to a large number of antenna or terahertz antenna 5 base stations (BSs) via an optical fiber network such as This technique for transmission deploys a Mach-Zehnder intensity modulator to generate the required optical carrier frequency to provide point-to-point and point-to-multipoint links. The RoF, such as hybrid fiber radio, 7 transmits signals and then propagates over fiber links toward remote BSs by WDM. This architecture is an attractive solution for broad-band access since they allow quick