Investigation Of Polymer Electro-Optic Properties And Its Devices

Along with the arrival of the information-based times, the fiber communication based on the new kinds of materials and technologies developed quickly to meet the great demand for information. There are various optic electric devices based on the inorganic crystals used in the area of fiber communication. However, the organic polymer materials with many special properties over inorganic crystals, such as fast response, ease of fabrication and lower cost, attracted considerable interest, especially the emergence of polymer waveguide-based prototypic devices. Currently, the investigation of organic polymer materials is focused on synthesis, properties and device fabrication to accelerate the realistic applications.In this dissertation, we investigated cross-linking temperature of cross-linked polymer system, the lininear and quadratic electro-optic (EO) properties of polymer materials. Using these EO materials, we fabricated attenuated total reflection (ATR) modulators based on linear and quadratic EO effects and proposed a WDM modulation scheme by cascading the ATR modulators.Cross-linked polymer system has received considerable attention due to its excellent stability. Because of the requirement of the occurrence of the polling and cross-link procedures of cross-linked polymer system at the same time, it is very important to determine the cross-linking temperature. In the dissertation, we proposed a scheme for measuring the cross-linking temperature by using the charge coupled device (CCD) to detect the shifts of m-line. Experiment results indicate that this method can be used to monitor the whole cross-linking procedure. This technique is very useful to investigate the properties and the device fabrication of cross-linked polymer materials.