The design of all-optical filters and logic gates based on metal-insulator-metal structure

• Main Authors: CHING-CHANG WANG, 王慶昌
• Other Authors: YAW-DONG WU
• Format: Others
• Language: en_US
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/94061971098371898767

碩士 === 國立高雄應用科技大學 === 電子工程系 === 98 === In this thesis, we discussed the properties of rectangular resonator waveguides. By utilizing the properties of the rectangular coupled resonator waveguides and finite-difference time-domain method (FDTD), the novel all-optical logic gates and channel drop filters devices have been proposed. Firstly, we demonstrate a new all optical logic gate structure by properly modulating the length and width ratio of the resonator based on metal-insulator-metal structure. On the other hand, the three-port channel drop filter is proposed. It can make the three wavelengths range of visible spectrum — blue light, green light and red light — propagate in different waveguides.The numerical results show that the proposed structures really could function as all-optical logic gate devices and channel drop filter devices. These would be a potential key component in the applications of ultra-high-speed and ultra-high-capacity optical communications and optical data processing systems.