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Measurement of Quantum Interference in a Silicon Ring Resonator Photon Source
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Ultra-compact silicon photonics switch with high-density thermo-optic heaters
Optics Express
|May 3, 2019
Summary
Researchers achieved significant miniaturization of silicon photonics switches using thermo-optic (TO) elements. This advancement enables denser integration and lower loss in photonic integrated circuits (PICs).
Area of Science:
- Photonics
- Integrated Optics
- Materials Science
Background:
- Miniaturization of silicon photonics switches is critical for advanced applications.
- Thermo-optic (TO) switches offer a viable solution, but their size limitations were not fully understood.
Purpose of the Study:
- To determine the minimum achievable size for silicon photonics switches using TO elements.
- To develop a high-density switch matrix architecture for compact designs.
Main Methods:
- Investigated the minimum spacing between adjacent TO phase shifter arms.
- Proposed and demonstrated a novel switch matrix architecture incorporating multi-layer electrical wirings.
Main Results:
- Achieved a 1/23 miniaturization of the photonic integrated circuit (PIC) part of an 8x8 silicon photonics switch.
- Demonstrated a compact electrical wire-out solution for high-density TO switch arrangements.
Conclusions:
- The study successfully addressed the miniaturization challenge for TO switches.
- The proposed architecture enables significantly more compact silicon photonics switch matrices.
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