EFFICIENT ALL-OPTICAL POLING OF AN AZO-DYE COPOLYMER USING A LOW-POWER LASER

Efficient all-optical poling of an ate-dye copolymer (consisting of a PMMA backbone to which DR1 molecules were grafted as pendant side grou ps) using a low power microsecond laser is demonstrated. Conversion ef ficiencies are as large as those usually achieved using more standard methods such as Electric Field poling. Periodic poling of the sample i s evidenced, Influence of the preparation conditions on the second-har monic generated signal is presented.