Modeling of strain-induced Pockels effect in Silicon

C. L. Manganelli, P. Pintus, and C. Bonati
Publication Date
Publication Type
Journal/Conference Name
Optics Express
vol. 23, no. 22, pp. 28649-28666

We propose a theoretical model to describe the strain-induced linear electro-optic (Pockels) effect in centro-symmetric crystals. The general formulation is presented and the specific case of the strained silicon is investigated in detail because of its attractive properties for integrated optics. The outcome of this analysis is a linear relation between the second order susceptibility tensor and the strain gradient tensor, depending generically on fifteen coefficients. The proposed model greatly simplifies the description of
the electro-optic effect in strained silicon waveguides, providing a powerful and effective tool for design and optimization of optical devices.

Research Areas
Silicon Photonics
In-Plane Semiconductor Lasers
Integration Technologies