一种基于光学双稳态效应的片上全光开关及设计方法
By designing an on-chip all-optical switch based on the optical bistable effect, utilizing a microcavity model encased in molten silicon and metal, and optimizing parameters using the finite-difference time-domain method, efficient optical switching was achieved. This solves the problems of small size and low power consumption of traditional optical devices in optical communication and is suitable for all-optical communication systems.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- UNIV OF ELECTRONICS SCI & TECH OF CHINA
- Filing Date
- 2023-04-12
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional optical devices are difficult to achieve small size and low power consumption all-optical control in optical communication. Nonlinear materials have low nonlinear coefficients and require high incident light power, which cannot meet the needs of integrated optics.
Design an on-chip all-optical switch based on the optical bistable effect. Employ a microcavity model and an incident light model, use molten silicon as the optical nonlinear material, and wrap the outer layer with metal. Optimize the cavity size and coupling parameters using the finite-difference time-domain method to achieve the optical bistable effect. Set a power threshold to achieve the conversion between logic '0' and '1'.
It achieves high-speed optical switching with an extinction rate of 87% and an optical switching rate of 1.72ps, making it suitable for on-chip all-optical communication systems.
Smart Images
Figure CN116430643B_ABST