1. Komatsu, K., Sugimoto, M., Ajisawa, A., and Suzuki, A.: ‘Small-size, low-crosstalk GaAs/AlGaAs electro-optic directional coupler switches with alternating δβ for long wavelength matrix switches’, 1989 Topical Meeting on Photonic Switching, Salt Lake City, UT p. 177–179 Tech. Dig.