Efficient adiabatic silicon-on-insulator waveguide taper
Efficient adiabatic silicon-on-insulator waveguide taper
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DOI：
10.1364/prj.2.000a41
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发表时间：
2014-06-01
影响因子：
7.6
通讯作者：
Chu, Tao
中科院分区：
文献类型：
--
作者：
Fu, Yunfei;Ye, Tong;Chu, Tao
提出了一种高耦合效率、小尺寸的绝缘体上硅绝热波导锥形结构。锥形的设计是为了减少入射的模式转换到高阶和辐射模式内的波导。在连接0.5 μ m宽的输出波导和12 μ m宽的输入波导的光栅耦合器，一个紧凑的120 μ m长的锥度，实现了98.3%的传输。以前，这种透射水平只能使用长度超过300 μ m的常规线性锥体来实现。(C)2014中国激光出版社
A silicon-on-insulator-based adiabatic waveguide taper with a high coupling efficiency and small footprint is presented. The taper was designed to reduce the incidence of mode conversion to higher-order and radiation modes inside the waveguide. In connecting a 0.5-mu m-wide output waveguide and a 12-mu m-wide input waveguide of a grating coupler, a compact 120-mu m-long taper was demonstrated, achieving a transmission of 98.3%. Previously, this transmission level could only be achieved using a conventional linear taper with a length of more than 300 mu m. (C) 2014 Chinese Laser Press