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Fully integrated microwave frequency synthesizer on heterogeneous silicon-III/V
Optics Express
|March 10, 2018
Summary
We developed a photonic microwave generator using silicon and indium phosphide. This device achieves microwave signal generation across a wide frequency range, demonstrating a novel integrated photonics approach.
Area of Science:
- Photonics
- Integrated Optics
- Microwave Engineering
Background:
- Photonic microwave generation is crucial for advanced communication systems.
- Heterogeneous integration of silicon and indium phosphide offers unique advantages for optoelectronic devices.
Purpose of the Study:
- To demonstrate a novel photonic microwave generator.
- To leverage the heterogeneous silicon-indium phosphide platform for integrated photonics.
Main Methods:
- Integration of tunable lasers with waveguide photodiodes on a silicon-indium phosphide platform.
- Characterization of photodiode bandwidth and responsivity.
- Demonstration of microwave signal generation from 1 to 112 GHz.
Main Results:
- Achieved microwave signal generation from 1 to 112 GHz.
- Integrated waveguide photodiodes exhibit 65 GHz bandwidth and 0.4 A/W responsivity.
- Tunable lasers with a 42 nm tuning range and <150 kHz linewidth were utilized.
Conclusions:
- The heterogeneous silicon-indium phosphide platform is suitable for high-performance photonic microwave signal generation.
- This integrated approach offers a promising pathway for compact and versatile microwave photonics.
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