All-Optical and Broadband Microwave Image-Reject Receiver Based on Phase Modulation and I/Q Balanced Detection

All-Optical and Broadband Microwave Image-Reject Receiver Based on Phase Modulation and I/Q Balanced Detection

Image-reject radio frequency (RF) receiver is the backbone of modern RF systems, but often suffers from limited bandwidth, local oscillator (LO) leakage, even-order distortion, and I/Q imbalance. A wideband photonic image-reject RF receiver based on two phase-modulators (PMs) in a Sagnac loop and an...

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Veröffentlicht in:Journal of lightwave technology 2020-11, Vol.38 (21), p.5962-5972
Hauptverfasser: Kang, Bochao, Li, Xu, Fan, Yangyu, Shi, Fangjing, Shen, Linglin, Tan, Qinggui, Wang, Di, He, You, Gao, Yongsheng
Format: Artikel
Sprache:eng
Schlagworte:
Bandwidths
Broadband
Constellations
Distortion
I/Q balanced detection
image-reject
Intermediate frequencies
Microwave photonics
Modulators
Optical fibers
Optical imaging
Optical polarization
Optical receivers
Phase modulation
Quadratures
Radio frequency
Rejection
Sagnac loop
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Beschreibung
Zusammenfassung:Image-reject radio frequency (RF) receiver is the backbone of modern RF systems, but often suffers from limited bandwidth, local oscillator (LO) leakage, even-order distortion, and I/Q imbalance. A wideband photonic image-reject RF receiver based on two phase-modulators (PMs) in a Sagnac loop and an I/Q balanced detector is proposed. In the experiment, excellent I/Q amplitude balance (
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2020.3007436