Enabling data-driven and bidirectional model development in Verilog-A for photonic devices.

Area of Science:

• Electrical Engineering
• Optoelectronics
• Computational Electromagnetics

Background:

• Accurate modeling of photonic components is crucial for electronic-photonic integrated circuit (EPIC) design.
• Existing simulation methods often struggle to capture complex wave interactions and reflections within photonic devices.
• Verilog-A is a standard hardware description language for analog and mixed-signal circuits, but its application to photonics requires specialized techniques.

Purpose of the Study:

• To develop a novel Verilog-A modeling approach for photonic components.
• To enable simultaneous simulation of forward and backward propagating waves on a single port.
• To improve the accuracy and intuitiveness of electronic-photonic co-simulation.

Main Methods:

• Employing the concepts of power waves and scattering parameters from electromagnetism.
• Implementing bidirectional signaling through a single port in Verilog-A.
• Validating the method with examples of Fabry-Perot cavity resonance and reflection effects.

Main Results:

• Demonstrated a method to model photonic components in Verilog-A with bidirectional signaling.
• Successfully captured realistic, measurement-backed responses of photonic components.
• Showcased the technique's efficacy in simulating critical EPIC effects like resonance and reflections.

Conclusions:

• The proposed Verilog-A modeling technique enhances the accuracy of electronic-photonic co-simulation.
• This method provides a more intuitive way to model complex photonic behaviors.
• It facilitates better design and analysis of photonic integrated circuits.