Silicon Integrated Microwave Photonic Mixer Based on Cascaded Microring Resonator Modulators

In this letter, we propose an ultra-compact integrated microwave photonic mixer employing cascaded silicon microring resonator modulators (MRMs), which achieves a wide RF/LO bandwidth of up to 32 GHz while maintaining a high conversion efficiency of up to −12 dB. According to the experimental result...

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Bibliographic Details
Published in:IEEE photonics technology letters 2024-03, Vol.36 (5), p.333-336
Main Authors: Liu, Fengyuan, Tang, Zhenzhou, Wu, Rongan, Tang, Liangzun, Van Thourhout, Dries, Pan, Shilong
Format: Article
Language:English
Subjects:
Bandwidth
Frequency mixer
microring resonator modulator
Microwave photonics
Mixers
Modulators
Optical mixing
Optical resonators
Photonics
Radio frequency
Resonators
Silicon
silicon photonics
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Summary:In this letter, we propose an ultra-compact integrated microwave photonic mixer employing cascaded silicon microring resonator modulators (MRMs), which achieves a wide RF/LO bandwidth of up to 32 GHz while maintaining a high conversion efficiency of up to −12 dB. According to the experimental results, the conversion efficiency is insensitive to RF power fluctuations and can be enhanced by increasing the optical power. Furthermore, the linearity of the mixer is characterized, which shows a spurious-free dynamic range of 83.8 dBc \cdot Hz2/3. The proposed scheme results in a significant reduction in device footprint, and comparable performance to the microwave photonic mixers reported previously, which demonstrates the feasibility of the silicon microring modulator for analog applications, such as radio over fiber communications, or microwave photonics.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2024.3354725