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21 December 2023 Broadband microwave photonic mixer based on a single dual-drive Mach-Zehnder modulator with high image rejection ratio
Pengfei Su, Weiqiang Lyu, Lingjie Zhang, Zhiyao Zhang, Yong Liu
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Proceedings Volume 12966, AOPC 2023: AI in Optics and Photonics ; 129661N (2023) https://doi.org/10.1117/12.3007469
Event: Applied Optics and Photonics China 2023 (AOPC2023), 2023, Beijing, China
Abstract
A microwave photonic image rejection mixer (IRM) with large operation bandwidth and high image rejection ratio (IRR) is proposed and demonstrated based on a single dual-drive Mach-Zehnder modulator (DDMZM) and a wavelength division multiplexer (WDM). In the proposed scheme, the two radio-frequency (RF) ports of the DDMZM is driven by a RF signal and a local oscillator (LO) signal, respectively. Two intermediate-frequency (IF) signals are generated by beating the upper sideband and the lower sideband of the DDMZM, respectively. Then, the two IF signals are injected into an electrical 90° hybrid coupler (HC) to realize image rejection. In the experiment, a stable IRR above 60 dB in the RF signal frequency range of 10 GHz to 40 GHz and with a 1- GHz fixed IF signal frequency is achieved. When the IF signal frequency is changed from 1 GHz to 6 GHz and the LO signal is with a fixed frequency of 29 GHz, the IRR can also large than 60 dB.
(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.
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Pengfei Su, Weiqiang Lyu, Lingjie Zhang, Zhiyao Zhang, and Yong Liu "Broadband microwave photonic mixer based on a single dual-drive Mach-Zehnder modulator with high image rejection ratio", Proc. SPIE 12966, AOPC 2023: AI in Optics and Photonics , 129661N (21 December 2023); https://doi.org/10.1117/12.3007469
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KEYWORDS
Microwave photonics
Wavelength division multiplexing
Signal generators
Modulation
Demodulation
Frequency response
Laser frequency
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