External electro-optic measurement utilizing poled polymer-based asymmetric Fabry-Perot reflection film

An external linear electro-optic measuring system based on a poled polymer asymmetric Fabry-Perot multiple reflection film has been built, and the ele ctric signals propagating on an indium tin oxide coplanar strip transmissio n line have been successfully measured. The nonlinear polymer spin coated o n the high-reflectivity glass substrate was corona poled, thus an asymmetri c Fabry-Perot film was fabricated based on polymer reflectivity and high re flectivity glass. The film standing-free technique and reflective configura tion were adopted in this system. The principle of the system was analyzed by multiple reflection and index ellipsoid methods. The voltage sensitivity about 5 mv/root Hz was obtained as 1 kHz sine input electric signals propa gating on coplanar electrodes. (C) 1999 American Institute of Physics. [S00 21-8979(99)02123-4].