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首页> 外文期刊>Journal of Lightwave Technology >Ultra-high-speed PLL-type clock recovery circuit based on all-optical gain modulation in traveling-wave laser diode amplifier
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Ultra-high-speed PLL-type clock recovery circuit based on all-optical gain modulation in traveling-wave laser diode amplifier

机译：行波激光二极管放大器中基于全光增益调制的超高速PLL型时钟恢复电路

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摘要

A new phase lock loop (PLL) is developed for very-high-speed optical timing extraction using traveling-wave laser-diode amplifier (TW-LDA) as a phase detector. The all-optical gain modulation of the TW-LDA is utilized to detect the relative phase difference between an optical signal and an optical clock The frequency response of the optical gain modulation measured with the optical heterodyne technique agrees with the theoretical results based on a rate equation model. With the developed PLL, 10-GHz optical timing clock is successfully extracted from randomly modulated optical signal pulses and the measured bit-error-rate performance shows no power penalty. Influence of the received optical noise on the phase variance of the PLL is also evaluated and it is concluded that 100 GHz operation is possible by increasing the input optical power to 10 mW.
机译：开发了一种新的锁相环（PLL），用于使用行波激光二极管放大器（TW-LDA）作为鉴相器来进行超高速光定时提取。 TW-LDA的全光增益调制用于检测光信号和光时钟之间的相对相位差。使用光学外差技术测量的光增益调制的频率响应与基于速率的理论结果一致方程模型。利用开发的PLL，可以从随机调制的光信号脉冲中成功提取10 GHz光学定时时钟，并且测得的误码率性能不会降低功耗。还评估了接收到的光噪声对PLL相位变化的影响，并得出结论，通过将输入光功率增加到10 mW，可以实现100 GHz的工作。

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