Broadband opto-mechanical phase shifter for photonic integrated circuits
Abstract
A broadband opto-mechanical phase shifter for photonic integrated circuits is proposed and numerically investigated. The structure consists of a mode-carrying waveguide and a deformable non-mode-carrying nanostring, which are parallel with each other. Utilizing the optical gradient force between them, the nanostring can be deflected. Thus the effective refractive indices of the waveguide is changed with the deformation, and further causes a phase shift. The phase shift under different geometry sizes, launched powers and boundary conditions are calculated and the dynamical properties as well as the thermal noise's effect are also discussed. It is demonstrated that a phase shift can be realized with only about 0.64 mW launched power and 50 long nanostring. The proposed phase shifter may find potential usage in future investigation of photonic integrated circuits.
Keywords
Cite
@article{arxiv.1202.3239,
title = {Broadband opto-mechanical phase shifter for photonic integrated circuits},
author = {Xiang Guo and Chang-Ling Zou and Xi-Feng Ren and Fang-Wen Sun and Guang-Can Guo},
journal= {arXiv preprint arXiv:1202.3239},
year = {2013}
}