Research on Optical Waveguide Switches using Ferro-electric Liquid Crystal Claddings for use in Photonic Networks

本研究旨在探讨铁电液晶包覆层之光波导开关。研究成果包括：1。提出了一种由液晶包层光波导构成的新型相位可变光波导.适用于相位可变光波导的芯材料的评价.以绝缘体上硅为衬底的硅光波导的研制.铁电液晶包层相位可变光波导演示.利用铁电液晶包层的相位可变光波导，研制了光马赫-曾德尔干涉仪幅度调制器和2 × 2光开关.透过光开关之发展，验证以铁电液晶包覆之相位可变光波导之可行性。

The research has been carried out to demonstrate the novel optical waveguide switches having ferro-electric liquid crystal claddings. Achievements of the research include ;1. Proposal of a new phase-variable waveguide constituted with the optical waveguide with liquid crystal claddings.2. Evaluation of core materials suited for phase-variable optical waveguide.3. Development of Si optical waveguide using Silicon-On-Insulator substrate.4. Demonstration of phase-variable optical waveguide with the ferro-electric liquid crystal cladding.5. Development of an optical Mach-Zehnder Interferometer amplitude modulator and 2x2 optical switch using phase-variable optical waveguide with the ferro-electric liquid crystal cladding.6. Demonstration of the feasibility of phase-variable optical waveguides with ferro-electric liquid crystal cladding through the development of optical switches.