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Robust silicon-on-insulator adiabatic splitter optimized by metamodeling.
Applied Optics
|April 5, 2017
Summary
This study demonstrates a robust integrated power splitter using silicon-on-insulator technology. The device achieves stable power separation through optimized design, confirmed by wafer-scale experiments.
Area of Science:
- Integrated photonics
- Semiconductor device physics
Background:
- Power splitters are fundamental components in photonic integrated circuits.
- Achieving stable and robust power splitting across a bandwidth remains a challenge.
Purpose of the Study:
- To demonstrate a robust integrated power splitter.
- To improve power splitting stability and bandwidth performance.
Main Methods:
- Utilized a silicon-on-insulator adiabatic coupler configuration.
- Employed a metamodel-based iterative optimization strategy for geometrical parameters.
- Investigated simultaneous changes in phase and coupling constants.
Main Results:
- Demonstrated a robust integrated power splitter with improved stability.
- Verified robustness experimentally on a single device and at the wafer scale.
- Showcased enhanced power splitting stability through simultaneous parameter optimization.
Conclusions:
- The developed adiabatic coupler offers a robust solution for integrated power splitting.
- The optimization strategy effectively addresses multi-parameter challenges for improved device performance.
- Wafer-scale validation confirms the practical applicability of the robust power splitter design.