Broaband Mach-Zehnder interferometric optical modulators at wavelength 1.52㎛ have been designed based on the Ti-LinbO_3 Mach-Zehnder interferometer and coplanar waveguide(CPW) traveling-wave eletrode structure. The characteristic impedance effctive ...
Broaband Mach-Zehnder interferometric optical modulators at wavelength 1.52㎛ have been designed based on the Ti-LinbO_3 Mach-Zehnder interferometer and coplanar waveguide(CPW) traveling-wave eletrode structure. The characteristic impedance effctive modulating-wave index electrode loss overlap factor and driving power for CPW have been derived as a function of geometric parameters including electrode and buffer layer thickness. The designed Mach-Zehnder inerfermeters were simulated utilizing BPM-CAD TOOL and CPW electrode structures including D.C bias portion were designed. The microwave characteristic values for CPW were calculated.