Mechanical Kerr nonlinearities due to bipolar optical forces between deformable silicon waveguides

被引:37
作者
Ma, Jing [1 ]
Povinelli, Michelle L. [1 ]
机构
[1] Univ So Calif, Ming Hsieh Dept Elect Engn, Los Angeles, CA 90089 USA
来源
OPTICS EXPRESS | 2011年 / 19卷 / 11期
基金
美国国家科学基金会;
关键词
RADIATION-PRESSURE; ENHANCEMENT; POTENTIALS; RESONANCES; ACTUATION; SYSTEMS;
D O I
10.1364/OE.19.010102
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We use an analytical method based on the perturbation of effective index at fixed frequency to calculate optical forces between silicon waveguides. We use the method to investigate the mechanical Kerr effect in a coupled-waveguide system with bipolar forces. We find that a positive mechanical Kerr coefficient results from either an attractive or repulsive force. An enhanced mechanical Kerr coefficient several orders of magnitude larger than the intrinsic Kerr coefficient is obtained in waveguides for which the optical mode approaches the air light line, given appropriate design of the waveguide dimensions. (C) 2011 Optical Society of America
引用
收藏
页码:10102 / 10110
页数:9
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