Photovoltaic cells has been fabricated using iodine-doped nonconjugated conductive polymers, poly(?-pinene) and cis-polyisoprene. Quadratic electro-optic modulation has been measured in the doped film of cis-polyisoprene at 633nm wavelength. Guided wave electro-optic effect has been reported for the first time using iodine doped cis-polyisoprene at 633nm. The throughput of the waveguide was 5% involving iodine doped nonconjugated conductive polymer. The modulation depth observed for this waveguide was 1% for an applied field of 0.3 V/?m. These initial results look very promising.