Photonic generation of millimeter wave in radio-over-fiber transmission system

Abstract

The advancing communication networks provide favorable circumstances for photonic technologies for achieving the requirement of high data rate and reduced latency. The optical fiber link which is the backbone of almost all communication network has introduced the Radio over Fiber(RoF) technology, in which the mobile front hauling comprises of two domains say, wireless and wired networks. Millimeter wave spectrum usage is one of the evolved technologies for the next generation communication network in wireless domain. Millimeter wave technology integrated with a ROF system is one of the promising technologies that could provide seamless connectivity with high data rate and reduced latency. The integrated system provides the advantages of both optical fiber links and the millimeter wave frequency spectrum. The photonic generation of the Millimeter wave(MMW) signal in MMW-ROF transmission system is a predominant process. In MMW-RoF, conversion of an optical signal to an extremely high frequency radio signal by utilizing photonic up-conversion scheme is done. Thus obtaining the photonic generation of millimeter wave. The study compares the MMW-RoF link with two different optical modulation schemes.