Dptical Single Sideband Modulation of 9-GHz RoF System Based on FWM Effects of SOA

摘要

We propose an optical single sideband (OSSB) modulation scheme using self-phase modulation (SPM), cross-phase modulation (XPM) and four-wave mixing (FWM) effects of SOA to achieve wavelength conversion. Drive with the 9 GHz RF signal into electro-absorption modulator laser (EML) and IM modulator. By properly adjust the phase shifter for phase difference between the two paths of electrical signal. FWM signal is OSSB format for a 25 km SMF transmission. Finally, we use an optical spectrum analyzer (OSA) to observe optical spectrum.