ACOUSTOOPTIC MODULATION USING A NEW CHLOROTELLURITE GLASS

Results of initial tests on an acousto-optic modulator using a new chl orotellurite glass with a composition of 3TeO(2)-2ZnCl(2) are reported . This glass exhibits a wider transparency range (0.42-5.7 mu m) than other tellurite glasses, with approximately the same figures of merit. We obtained an 80% diffraction loss and a 65% diffraction efficiency at a 633 nm wavelength, using an 80 MHz 15X1 mm piezoelectric transduc er with 1.5 W of rf power. This glass is able to convert to fiber form , thus allowing efficient in-fiber acousto-optic modulators to be buil t.