Tümleşik optik uygulamaları için kutupsal olmayan ısıl optik kipleyiciler

Abstract POLARIZATION INDEPENDENT THERMO-OPTIC MODULATORS FOR INTEGRATED OPTICS Aşkın Kocabaş M. S. in Physics Supervisor: Prof. Atilla Aydınlı September 2003 In this work, we studied MMI and Y-junction based Mach-Zehnder modulators on both silicon-on-insulator and polymer based on thermo-optic effect. Both Pw values and frequency response of the devices were measured and found to be consistent with those observed in the literature as well as results obtained from finite element simulations. We feel that our BCB based Y-junction modulators have the highest reported 3 -dB cut-off frequency to date. We also observe that all of our devices are polarization independent, an important feature for applications in optical communications. Keywords: Thermo-optic modulators, Thermo-optic effect, Finite element method, Multi-mode interference, Y-junction modulator, Poly mer modulator.