Adaptive linearized microwave downconversion utilizing a single dual-electrode Mach-Zehnder modulator

Adaptive linearized microwave downconversion utilizing a single dual-electrode Mach-Zehnder modulator

An adaptive postprocessing approach to improve the linearity of the down-converted analog photonic link has been proposed and experimentally demonstrated. With the inverse transformation for the detected signal, the third-order intermodulation distortion (IMD3) can be significantly suppressed when o...

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Veröffentlicht in:Optics letters 2015-06, Vol.40 (11), p.2649-2652
Hauptverfasser: Pan, Yan, Yan, Lianshan, Chen, Zhiyu, Pan, Wei, Luo, Bin, Zou, Xihua, Ye, Jia, Yi, Anlin
Format: Artikel
Sprache:eng
Schlagworte:
Bandwidth
Dynamic range
Intermodulation distortion
Inverse
Links
Microwaves
Modulators
Transformations
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Zusammenfassung:An adaptive postprocessing approach to improve the linearity of the down-converted analog photonic link has been proposed and experimentally demonstrated. With the inverse transformation for the detected signal, the third-order intermodulation distortion (IMD3) can be significantly suppressed when only the frequency and bandwidth of the signal are known. Experimental results show that the spurious-free dynamic range (SFDR) of the link can reach ∼126  dB·Hz(4/5) after the proposed compensation scheme.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.40.002649