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Q-factor improvement of degenerate four-wave-mixing regenerators for ASE degraded signals

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Abstract

All-optical regenerators can be used to suppress amplified spontaneous emission (ASE) noise introduced by cascaded erbium doped fiber amplifiers (EDFAs) in optical fiber communication systems and lead to the improvement of optical receiver sensitivity. By introducing the Q-factor transfer function (QTF), we evaluate the Q-factor performance of degenerate four-wave mixing (DFWM) regenerators with clock pump and reveal the differences between the optimal input powers determined from the static and dynamic power tranfer function (PTF) and the QTF curves. Our simulation shows that the clock-pump regnerator is capable of improving the Q-facor and receiver sensitivity for 40 Gbit/s ASE-degraded return-to-zero on-off keying (RZ-OOK) signal by 2.58 dB and 4.2 dB, respectively.

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Authors and Affiliations

  1. Key Lab of Optical Fiber Sensing and Communications, Ministry of Education, University of Electronic Science and Technology of China, Chengdu, 611730, China

    Hang Lu  (卢行), Bao-jian Wu  (武保剑), Yong Geng  (耿勇), Xing-yu Zhou  (周星宇) & Fan Sun  (孙凡)

Authors
  1. Hang Lu  (卢行)
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  2. Bao-jian Wu  (武保剑)
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  3. Yong Geng  (耿勇)
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  4. Xing-yu Zhou  (周星宇)
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  5. Fan Sun  (孙凡)
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Corresponding author

Correspondence to Bao-jian Wu  (武保剑).

Additional information

This work has been supported by the National Natural Science Foundation of China (No.61671108), the Fundamental Research Funds for the Central Universities (No.ZYGX2014J005), and the Program for Changjiang Scholars and Innovative Research Team in University.

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Lu, H., Wu, Bj., Geng, Y. et al. Q-factor improvement of degenerate four-wave-mixing regenerators for ASE degraded signals. Optoelectron. Lett. 13, 401–404 (2017). https://doi.org/10.1007/s11801-017-7126-2

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  • DOI: https://doi.org/10.1007/s11801-017-7126-2

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