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Actively stabilized silicon microrings with integrated surface-state-absorption photodetectors using a
Optics Express
|September 24, 2016
Summary
We developed actively stabilized silicon microrings using integrated photodetectors. This technology significantly reduces intensity variations, enabling stable high-speed data transmission despite temperature changes.
Area of Science:
- Photonics
- Integrated Optics
- Semiconductor Devices
Background:
- Silicon microrings are crucial for optical communication.
- Temperature fluctuations destabilize microring performance.
- Integrated photodetectors are needed for active control.
Purpose of the Study:
- To demonstrate actively stabilized silicon microrings.
- To improve transmission stability against temperature variations.
- To assess data transmission capabilities under thermal stress.
Main Methods:
- Utilized silicon microrings with integrated surface-state-absorption (SSA) photodetectors.
- Employed a slope-detection method for active stabilization.
- Applied multiple discrete-step slope thresholds for control.
Main Results:
- Achieved actively stabilized microring transmission with intensity modulations within ~2.5 dB under 14°C temperature modulation.
- Demonstrated a ~7.5 dB improvement compared to unstabilized microrings.
- Observed open eye-diagrams at data rates up to 30 Gb/s.
- Maintained active alignment tolerance of ~0.16 nm over temperature modulation.
Conclusions:
- Active stabilization effectively mitigates microring intensity variations caused by temperature changes.
- The proposed method enhances the robustness of silicon microrings for optical communication.
- Actively stabilized microrings support high-speed data transmission in variable thermal environments.
