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A microwave photonic link with high spurious-free dynamic range based on a parallel structure

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Abstract

A microwave photonic link (MPL) with high spurious-free dynamic range (SFDR) is proposed and analyzed. The optical carrier is divided equally into two paths. The path 1 is modulated by radio frequency (RF) signals in a Mach-Zehnder modulator (MZM), and the phase of path 2 is controlled before the combination with path 1. By properly adjusting the phase difference of the two paths with the optical phase shifter, the third-order intermodulation distortion (IMD3) can be significantly suppressed. A proof-of-concept simulation is carried out. The results show that a reduction of 40 dB in the IMD3 and an improvement of 21.1 dB in the SFDR are achieved as compared with the conventional MZM-based MPL. The proposed MPL shows the advantages of simple structure, low cost and high efficiency.

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Authors and Affiliations

  1. Aeronautic Computing Technique Research Institute, Xi’an, 710072, China

    Shi-kui Wang  (王世奎)

  2. State Key Laboratory of Integrated Service Networks, Xidian University, Xi’an, 710071, China

    Yong-sheng Gao  (高永胜), Ai-jun Wen  (文爱军) & Ling Liu  (刘玲)

Authors
  1. Shi-kui Wang  (王世奎)
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  2. Yong-sheng Gao  (高永胜)
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  3. Ai-jun Wen  (文爱军)
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  4. Ling Liu  (刘玲)
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Corresponding author

Correspondence to Ai-jun Wen  (文爱军).

Additional information

This work has been supported by the Fundamental Research Funds for the Central Universities (No.JB142001-9), and the Programme of Introducing Talents of Discipline to Universities China 111 Project (No.B08038).

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Wang, Sk., Gao, Ys., Wen, Aj. et al. A microwave photonic link with high spurious-free dynamic range based on a parallel structure. Optoelectron. Lett. 11, 137–140 (2015). https://doi.org/10.1007/s11801-015-4228-6

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  • DOI: https://doi.org/10.1007/s11801-015-4228-6

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