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题名: A novel design of grating couplers for efficient broadband coupling between silicon-on-insulator nanophotonic waveguides and fibres
作者: Yu HJ;  Yu JZ
发表日期: 2005
摘要: A novel design of out-of-plane grating couplers is proposed for coupling between silicon-on-insulator nanophotonic waveguides and single-mode fibres. The coupler with the first-order diffraction coupling to the optical fibre is actually a second-order reflected grating with two times of period of the first-order grating. To enhance outcoupled power, a back hole is designed to form in the silicon substrate and a kind of metals is placed on the top acting as a reflection layer. The coupler is optimized using coupled-mode- based simulations, showing that, the coupling efficiency to and from tapered optical fibre can be as high as 85% with 1 dB bandwidth about 23nm.
刊名: CHINESE PHYSICS LETTERS
专题: 中国科学院半导体研究所(2009年前)_期刊论文

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推荐引用方式:
Yu, HJ; Yu, JZ .A novel design of grating couplers for efficient broadband coupling between silicon-on-insulator nanophotonic waveguides and fibres ,CHINESE PHYSICS LETTERS,NOV 2005,22 (11):2865-2868
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