中国物理B ›› 2010, Vol. 19 ›› Issue (12): 124214-124214.doi: 10.1088/1674-1056/19/12/124214
樊中朝1, 韩伟华1, 周亮2, 李智勇2, 朱宇2, 李运涛2, 俞育德2, 余金中2
Zhou Liang(周亮)a), Li Zhi-Yong(李智勇) a), and Zhu Yu(朱宇)a), Li Yun-Tao(李运涛)a), Fan Zhong-Cao(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 highly efficient grating coupler with large filling factor and deep etching is proposed in silicon-on-insulator for near vertical coupling between the rib waveguide and optical fibre. The deep slots acting as high efficient scattering centres are analysed and optimized. As high as 60% coupling efficiency at telecom wavelength of 1550-nm and 3-dB bandwidth of 61 nm are predicted by simulation. A peak coupling efficiency of 42.1% at wavelength 1546-nm and 3-dB bandwidth of 37.6 nm are obtained experimentally.
中图分类号: (Gratings)