A new electro-optical polymer has been synthesized with a fluorine-containing electrooptical chromophore covalently connected to a fluorine-containing macromolecule. The degree of fluorination of polymer, defined as the ratio of the number of fluorine atoms to the number of fluorine and hydrogen atoms in this macromolecule, is 28.6%. The optical and physical properties of the polymer obtained were investigated. It was shown that it is capable to film formation and can be used to create optical waveguides. It was found that under the action of laser radiation in visible range, the irreversible photobleaching of chromophore in side chain occurs, which is accompanied by decrease in the polymer refractive index. The single-mode channel waveguides in the electrooptical polymer were formed by photobleaching. The polymer possesses increased optical transparency in the telecommunications C-wavelength range and is promising for creation of electro-optical modulators operating in the near IR range.