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Ultra-compact optical full-adder based on directed logic and microring resonators
Applied Optics
|January 4, 2024
Summary
We developed an ultra-compact optical full-adder using directed logic and microring resonators, significantly reducing component count and footprint for advanced optical computing systems.
Area of Science:
- Photonics
- Optical Computing
- Integrated Circuits
Background:
- Compact photonic integrated circuits (PICs) are crucial for optical computing.
- Dense integration is hindered by the high component count in current optical designs.
Purpose of the Study:
- To propose an ultra-compact optical full-adder.
- To reduce the number of optical components and the overall footprint.
Main Methods:
- Utilizing directed logic and microring resonators for circuit design.
- Employing finite-difference time-domain (FDTD) simulations for validation.
Main Results:
- The proposed optical full-adder achieves a minimal footprint of 59.2µm × 29.2µm.
- Demonstrates a maximum delay time of approximately 10 ps, enabling a 100 GHz data rate.
Conclusions:
- The proposed design offers a significant reduction in component count and size compared to existing solutions.
- FDTD simulations confirm the effectiveness and feasibility of the ultra-compact optical full-adder for high-speed optical computing applications.
