Abstract
In this paper generation of 40GHz and 60GHz millimeter wave carriers using 20 GHz and 30Ghz local oscillators via optical phase modulator is presented. By exploiting the pi out of phase nature of first order harmonics of phase modulator without suppressing the carrier we have successfully double the beating frequency and also up convert 2.5Gb/s and 622Mb/s data in mm wave band over these carriers through LiNbO3 MZM modulator. Error free transmission up to 50km is successfully obtained. Millimeter wave generation and data up conversion is analyzed bout in electrical and optical domain.BER for different length of fibers and immunity of system against dispersion is also simulated.