@article{oai:nagoya.repo.nii.ac.jp:00030779, author = {Goto, Nobuo and Miyazaki, Yasumitsu and Akao, Yasuo}, issue = {1}, journal = {Memoirs of the Faculty of Engineering, Nagoya University}, month = {Oct}, note = {Optical active devices using acousto-optic (A-O) interaction by a surface acoustic wave (SAW) are expected to play an important roll in optical communication and signal processing. In this device using collinear A-O interaction, wavelength-multiplexed optical signals can be controlled by frequency-multiplexed SAWs. The purpose of this study is to develop an A-O separator and to clarify its potential use in signal processing. First, characteristics of the separator are theoretically discussed. Then the results are experimentally verified with devices consisting of ZnS/Ta[2]O[5]/Nb[2]O[5] multilayered films on Y-X LiNbO[3] substrates. Next, to improving the A-O interaction efficiency and temperature independency, material combinations of the device are investigated. The design of effective SAW waveguides is also demonstrated for a Ta[2]O[5] strip on a LiNbO[3] substrate. Finally, channel waveguide devices and their applications to signal processing such as signal exchanging and matrix multiplication are discussed.}, pages = {1--41}, title = {Study of waveguide-type optical separators using acousto-optic effects}, volume = {38}, year = {1986} }