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首页> 外文期刊>Optical fiber technology >Temporal-Talbot-effect-based preprocessing for pattern-effect reduction in all-optical clock recovery using a semiconductor-optical-amplifier-based fiber ring laser
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Temporal-Talbot-effect-based preprocessing for pattern-effect reduction in all-optical clock recovery using a semiconductor-optical-amplifier-based fiber ring laser

机译：基于时间-Talbot效应的预处理，使用基于半导体光放大器的光纤环形激光器降低全光时钟恢复中的图案效应

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摘要

We propose and experimentally demonstrate the temporal-Talbot-effect (TTE)-based preprocessing for the pattern-effect reduction in the all-optical clock recovery using a semiconductor-optical-amplifier (SOA)-based fiber ring laser (SOA-FRL). The TTE-based preprocessing successfully reduced the pattern effects of the recovered clock pulses, so that the 10-GHz clear optical clock pulses were recovered from a 10-Gbit/s return-to-zero on-off keying (RZ-OOK) pseudo-random bit sequence (PRBS) optical signal. "Peak variation" and "Pattern-dependent intensity noise (PDIN)" were proposed and were utilized as parameters to quantitatively evaluate the pattern effects, from which recovered clock pulses suffer, in the temporal domain and the frequency domain, respectively. Peak variation was reduced from 77.2% to 36.2%, and PDIN was improved from -103 dBc/Hz to -110 dBc/Hz with the aid of the TTE-based preprocessing. Furthermore, we examined the tolerance of the proposed technique by intentionally deviating the input signal's bit-rate by ±190 Mbit/s (±2% of the bit-rate) from the optimum condition for the TTE. As compared with the PDIN value for the pulse train obtained by the direct injection of the non-processed signal into the SOA-FRL, the PDIN of the recovered clock pulses using the preprocessed signal indicated improvements over the entire measurement range of ±190 Mbit/s, which corresponds to the wavelength-dispersion deviation of ±56 psm (±4% of the wavelength-dispersion applied to the input signal) from the optimum value.
机译：我们提出并通过实验证明了基于时间-Talbot效应（TTE）的预处理，用于使用基于半导体光放大器（SOA）的光纤环形激光器（SOA-FRL）的全光时钟恢复中的图案效应降低。基于TTE的预处理成功地减少了恢复的时钟脉冲的图案效应，从而从10-Gbit / s归零开关键控（RZ-OOK）伪信号中恢复了10 GHz清晰光学时钟脉冲。 -随机比特序列（PRBS）光信号。提出了“峰值变化”和“依赖于模式的强度噪声（PDIN）”，并分别用作了在时域和频域中定量评估恢复时钟脉冲所遭受的模式影响的参数。借助基于TTE的预处理，峰值变化从77.2％降低到36.2％，PDIN从-103 dBc / Hz提高到-110 dBc / Hz。此外，我们通过有意使输入信号的比特率从TTE的最佳条件偏离±190 Mbit / s（比特率的±2％），从而检查了所提出技术的容忍度。与通过将未经处理的信号直接注入SOA-FRL而获得的脉冲序列的PDIN值相比，使用预处理的信号恢复的时钟脉冲的PDIN表示在整个190 Mbit / s的测量范围内都有改进s，它对应于最佳值±56 ps / nm的波长色散偏差（施加到输入信号的波长色散的±4％）。

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  • 来源
    《Optical fiber technology》 |2010年第1期|63-71|共9页
  • 作者

    Masaki Oiwa; Shunsuke Minami; Kenichiro Tsuji; Noriaki Onodera; Masatoshi Saruwatari;

  • 作者单位

    Department of Communications Engineering, National Defense Academy, 1 -10-20 Hashirimizu, Yokosuka, Kanagawa 239-8686, Japan;

    Department of Communications Engineering, National Defense Academy, 1 -10-20 Hashirimizu, Yokosuka, Kanagawa 239-8686, Japan;

    Department of Communications Engineering, National Defense Academy, 1 -10-20 Hashirimizu, Yokosuka, Kanagawa 239-8686, Japan;

    Department of Communications Engineering, National Defense Academy, 1 -10-20 Hashirimizu, Yokosuka, Kanagawa 239-8686, Japan;

    Department of Communications Engineering, National Defense Academy, 1 -10-20 Hashirimizu, Yokosuka, Kanagawa 239-8686, Japan;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    all-optical clock recovery; temporal-talbot effect; fiber ring laser; semiconductor optical amplifier; pattern effect;

    机译：全光时钟恢复;时间-塔博特效应光纤环形激光器半导体光放大器模式效果;

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