We report on the measured electro-optic coefficients of approximately $150\mathrm{pm}∕\mathrm{V}$ at $1310\mathrm{nm}$ and $1550\mathrm{nm}$ for poled guest–host polymer films made with the chromophore AJ404L. Films were poled using corona poling and parallel-plate poling techniques. The films were fabricated and poled and the electro-optic coefficients measured by two independent laboratories. Corona-poled AJ404L films were spun onto indium-tin oxide-coated glass substrates with and without a cladding layer of UV15LV. The $r_{33}$ value for the films were measured using the Teng–Man technique for both corona-poled and parallel-plate poled films.