INTEGRATED LIGHTWAVE MILLIMETRIC SINGLE SIDE-BAND SOURCE - DESIGN ANDISSUES

We report on a fully integrated lightwave single side-band (SSB) sourc e optimized for millimeter-wave (20-40 GHz) transport over fiber with no chromatic dispersion penalty. The operation principle is first deve loped. A practical design is proposed and tolerances of multimode inte rference (MMI) couplers and electroabsorption (EA) modulators subcompo nents are theoretically and experimentally examined. The phase toleran ces of MMI couplers are in particular given for the first time for Suc h a scheme. These results imply the achievement of fully integrated ru gged SSB source without resorting to complex technology steps.