Title :
Design consideration of traveling-wave modulators with phase reversed electrodes
Author :
Zhou, Yi ; Izutsu, Masayuki ; Sueta, Tadasi
Abstract :
The performance of traveling-wave type guided-wave light modulators with phase reversed electrodes is studied theoretically. Asymmetric stripline and coplanar waveguide are applied to the phase-reversed structure. modulators with these two types of electrodes are compared by using three figures of merit to characterize the qualities of modulators. They are the bandwidth-length product, the voltage-length product, and the bandwidth-voltage ratio. Design examples of modulators are also given. for high-speed and low-drive-voltage light modulation, the advantages of the use of asymmetric stripline are shown
Keywords :
electro-optical devices; optical modulation; strip line components; waveguide components; Mach-Zehnder interferometer; asymmetric stripline; bandwidth-length product; bandwidth-voltage ratio; coplanar waveguide; guided-wave light modulators; phase reversed electrodes; traveling-wave modulators; voltage-length product; Coplanar waveguides; Dielectric losses; Electrodes; Optical modulation; Optical refraction; Optical variables control; Optical waveguides; Phase modulation; Propagation losses; Strips;
Conference_Titel :
Computer and Communication Systems, 1990. IEEE TENCON'90., 1990 IEEE Region 10 Conference on
Print_ISBN :
0-87942-556-3
DOI :
10.1109/TENCON.1990.152699
