Molten alloys under high pressure were used to obtain fibers with long internal electrodes that are solid at room temperature. An integrated Mach–Zehnder interferometer was constructed from a twin-core twin-hole fiber that permitted application of an electric field preferentially to one of the cores. Good stability and a switching voltage of 1.4kV were measured with a 1-m-long fiber device with a quadratic voltage dependence.
© 2002 Optical Society of America
M. Fokine, L. E. Nilsson, Ãâ. Claesson, D. Berlemont, L. Kjellberg, L. Krummenacher, and W. Margulis, "Integrated fiber Mach-Zehnder interferometer for electro-optic switching," Opt. Lett. 27, 1643-1645 (2002)