New Configuration of Ring Resonator in Photonic Crystal Based on Self-Collimation
SHEN Xiao-Peng1, HAN Kui1, YUAN Fang2, LI Hai-Peng1, WANG Zi-Yu1, ZHONG Qi1
1Department of Physics, China University of Mining and Technology, Xuzhou 2211162College of Applied Science and Technology, China University of Mining and Technology, Xuzhou 221116
New Configuration of Ring Resonator in Photonic Crystal Based on Self-Collimation
SHEN Xiao-Peng1, HAN Kui1, YUAN Fang2, LI Hai-Peng1, WANG Zi-Yu1, ZHONG Qi1
1Department of Physics, China University of Mining and Technology, Xuzhou 2211162College of Applied Science and Technology, China University of Mining and Technology, Xuzhou 221116
摘要We propose a novel ring resonator configuration in a channelless photonic crystal. The proposed ring resonator utilizes the self-collimation effect and the bending and splitting mechanisms of line defects to route the propagation of light, instead of conventional indexed-guided waveguides or photonic crystal band gap waveguides. The finite-difference time-domain method (FDTD) is used to investigate the characteristics of the ring resonator. The new design exhibits an ON--OFF contrast with an extinction ratio of more than 12dB, and has an ultra-compact footprint of 3.3×3.3μm2 when it operates at the optical communication wavelength λ=1.55μm. The design presented may find applications in the areas including ultra-compact optical switch and wavelength filer in integrated optical circuits.
Abstract：We propose a novel ring resonator configuration in a channelless photonic crystal. The proposed ring resonator utilizes the self-collimation effect and the bending and splitting mechanisms of line defects to route the propagation of light, instead of conventional indexed-guided waveguides or photonic crystal band gap waveguides. The finite-difference time-domain method (FDTD) is used to investigate the characteristics of the ring resonator. The new design exhibits an ON--OFF contrast with an extinction ratio of more than 12dB, and has an ultra-compact footprint of 3.3×3.3μm2 when it operates at the optical communication wavelength λ=1.55μm. The design presented may find applications in the areas including ultra-compact optical switch and wavelength filer in integrated optical circuits.
SHEN Xiao-Peng;HAN Kui;YUAN Fang;LI Hai-Peng;WANG Zi-Yu;ZHONG Qi. New Configuration of Ring Resonator in Photonic Crystal Based on Self-Collimation[J]. 中国物理快报, 2008, 25(12): 4288-4291.
SHEN Xiao-Peng, HAN Kui, YUAN Fang, LI Hai-Peng, WANG Zi-Yu, ZHONG Qi. New Configuration of Ring Resonator in Photonic Crystal Based on Self-Collimation. Chin. Phys. Lett., 2008, 25(12): 4288-4291.
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2008, Vol. 25 
