True phase-matched second-harmonic generation in a waveguide of crosslinkable ferroelectric liquid crystals is demonstrated. These materials allow the formation of macroscopically polar structures whose order can be frozen by photopolymerization. Homeotropic alignment was chosen which offers decisive advantages compared to other geometries. All parameters contributing to the conversion efficiency are maximized by deliberately control領(lǐng) the supramolecular arrangement.The system has the potential to achieve practical level of performances as a frequency doubler for low power laser-diodes. 組合式多功能橢偏儀