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High-conversion-gain and deep-image-rejection Brillouin chip-based photonic RF mixer
Optics Letters
|October 1, 2020
Summary
We developed a chip-based photonic radio-frequency (RF) mixer using optical carrier suppression and stimulated Brillouin scattering. This integrated photonic RF mixer achieves high performance for complex electromagnetic environments.
Area of Science:
- Photonics
- Radio-frequency engineering
- Integrated optics
Background:
- Photonic radio-frequency (RF) mixers are crucial for modern wireless communication systems.
- Existing mixers face challenges in complex electromagnetic environments.
Purpose of the Study:
- To report a novel chip-based photonic RF mixer.
- To demonstrate high conversion gain and image rejection ratio.
Main Methods:
- Utilized optical carrier suppression modulation.
- Employed on-chip stimulated Brillouin scattering.
Main Results:
- Achieved a maximum conversion gain of -9 dB.
- Obtained an image rejection ratio of 50 dB.
- Operated over a wide RF frequency range (3.2 GHz to 13.2 GHz).
Conclusions:
- The developed integrated photonic RF mixer shows promising performance.
- This technology can enhance RF signal processing in challenging environments.
