.New design of 2-D photonic crystal waveguide couplers[J].Optoelectronics Letters,2006,2(5):334-335 New design of 2-D photonic crystal waveguide couplers ZHONG Zhi-rong ZHANG Li-hua YANG Hong-qin JIANG Yun-kun Department of Electronic Science and Applied Physics, Fuzhou University, Fuzhou 350002, China Abstract:       Based on couple wave equation and finite-difference time-domain (FDTD) algorithm, the strong couple characteristic of 2-D photonic crystal couplers is calculated. Theoretical analysis and numerical simulated results indicate that the energy in a 2-D photonic crystal coupler can not be totally transferred between two wave-guides. Compared with the result of weak coupling theory, our result is more accurate. Supported by the Youth Science and Technology Innovation Item Foundation of Fujian Province (2001J008) Hits: 3585 Download times: 185 View Full Text    Download reader