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首页> 外文期刊>Selected Topics in Quantum Electronics, IEEE Journal of >Detailed Analysis of All-Optical Clock Recovery at 10 Gb/s Based on a Fiber Optical Parametric Oscillator
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Detailed Analysis of All-Optical Clock Recovery at 10 Gb/s Based on a Fiber Optical Parametric Oscillator

机译：基于光纤参量振荡器的10 Gb / s全光时钟恢复的详细分析

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摘要

We demonstrate all-optical clock recovery of input return-to-zero ON-OFF-keyed signals operating at 10 Gb/s using a fiber optical parametric oscillator (FOPO). We first characterize an actively mode-locked FOPO, which serves as the basis for all-optical clock recovery. 12.5-ps pulses with a timing jitter of around 450 fs are generated. Afterward, the characteristics of the recovered clock (timing jitter, pulsewidth, and time-bandwidth product) are investigated as a function of the duty cycle, average power, extinction ratio, and optical signal to noise ratio (OSNR) of the input signal. The wavelength tunability of the recovered clock is also investigated. The results show that the FOPO can recover a good quality clock over a large range of input signal characteristics, namely, duty cycle from 33% to 60%, average input power from -23 to 6 dBm, extinction ratio above 8.7 dB, and an OSNR larger than 27 dB. The wavelength of the recovered clock signal can be tunable over 8 nm.
机译：我们演示了使用光纤参量振荡器（FOPO）以10 Gb / s操作的输入归零开关键输入信号的全光时钟恢复。我们首先描述一个主动锁模的FOPO，它是全光时钟恢复的基础。产生具有约450 fs的定时抖动的12.5ps脉冲。然后，根据输入信号的占空比，平均功率，消光比和光信噪比（OSNR），研究恢复的时钟的特性（定时抖动，脉冲宽度和时间带宽乘积）。还研究了恢复时钟的波长可调性。结果表明，FOPO可以在大范围的输入信号特性（即占空比从33％到60％，平均输入功率从-23到6 dBm，消光比8.7 dB以上）和高输入信号特性的范围内恢复高质量的时钟。 OSNR大于27 dB。恢复的时钟信号的波长可以在8 nm范围内可调。

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