Programmable Photonic Circuits with Feedback for Parallel Computing
Published:Dec 26, 2025 04:14
•1 min read
•ArXiv
Analysis
This paper introduces a novel photonic integrated circuit (PIC) architecture that addresses the computational limitations of current electronic platforms by leveraging the speed and energy efficiency of light. The key innovation lies in the use of embedded optical feedback loops to enable universal linear unitary transforms, reducing the need for active layers and optical port requirements. This approach allows for compact, scalable, and energy-efficient linear optical computing, particularly for parallel multi-wavelength operations. The experimental validation of in-situ training further strengthens the paper's claims.
Key Takeaways
- •Introduces a compact and programmable photonic integrated circuit (PIC) architecture.
- •Leverages embedded optical feedback loops for universal linear unitary transforms.
- •Enables parallel multi-wavelength operations.
- •Reduces optical port requirements and minimizes power losses.
- •Demonstrates in-situ training capabilities.
Reference
“The architecture enables universal linear unitary transforms by combining resonators with passive linear mixing layers and tunable active phase layers.”