A piezoelectrically actuated four-port Mach–Zehnder switch with 30-μs switching time and 0.25-dB insertion loss is demonstrated at a wavelength of 1.3 μm. The worst-case cross talk is below −21 dB for an arbitrary input polarization. The process of fabricating the switch from commercial fiber couplers with length matching of the interferometer arms is described.
© 1994 Optical Society of America
Original Manuscript: January 27, 1994
Published: August 15, 1994
S. P. Fang and H. F. Taylor, "High-performance single-mode fiber-optic switch," Opt. Lett. 19, 1204-1206 (1994)