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Dual-function photonic integrated circuit for frequency octo-tupling or single-side-band modulation
Optics Letters
|June 2, 2015
Summary
This study introduces a dual-function photonic integrated circuit for microwave photonics. It enables both frequency up-conversion and tunable millimeter wave generation using a novel Mach-Zehnder interferometer design.
Area of Science:
- Photonics
- Integrated Circuits
- Microwave Engineering
Background:
- Microwave photonic systems require efficient signal processing.
- Existing integrated circuits often lack dual functionality for diverse applications.
Purpose of the Study:
- To propose a novel dual-function photonic integrated circuit.
- To enable frequency up-conversion and millimeter wave generation within a single device.
Main Methods:
- Utilizing a generalized Mach-Zehnder interferometer architecture.
- Incorporating four linear electro-optic phase modulators in parallel.
- Exploiting multi-mode interference coupler phases for optical phase control.
Main Results:
- Demonstrated frequency up-conversion (electrical to optical domain).
- Achieved tunable millimeter wave carrier generation via frequency octo-tupling.
- Verified performance through computer simulations.
Conclusions:
- The proposed circuit offers versatile microwave photonic functionalities.
- The integrated design simplifies complex signal processing tasks.
- This dual-functionality is crucial for advanced communication systems.
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