中国物理B ›› 2011, Vol. 20 ›› Issue (7): 74212-074212.doi: 10.1088/1674-1056/20/7/074212
樊中朝1, 韩伟华1, 周亮2, 李智勇2, 胡应涛2, 熊康2, 俞育德2, 余金中2
Zhou Liang(周亮)a), Li Zhi-Yong(李智勇)a)†, Hu Ying-Tao(胡应涛)a), Xiong Kang(熊康)a), Fan Zhong-Chao(樊中朝)b), Han Wei-Hua(韩伟华)b), Yu Yu-De (俞育德)a), and Yu Jin-Zhong (余金中)a)
摘要: A novel grating coupler with a stair-step blaze profile is proposed. The coupler is a CMOS process compatible device and can be used for light coupling in optical communication. The blaze profile can be optimized to obtain a high efficiency of 66.7% for the out-of-plane coupling at the centre wavelength of 1595 nm with a 1 dB bandwidth of 41 nm. Five key parameters of the stair-step blaze grating and their effects on the coupling are discussed for the application in L band telecommunication.
中图分类号: (Optical computers, logic elements, interconnects, switches; neural networks)