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arXiv 1102.2540physics.optics
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高速P-I-N光电二极管功率-相位转换特性研究

Characterization of Power-to-Phase Conversion in High-Speed P-I-N Photodiodes

J. Taylor, S. Datta, A. Hati, C. Nelson, F. Quinlan, A. Joshi, S. Diddams

摘要:

由于半导体中的非线性饱和,入射到光电二极管上的光功率的波动可以转换为所得电信号的相位波动。这影响从光电检测的光脉冲训练产生的微波信号的总体定时稳定性(相位噪声)。在本文中,我们描述和利用技术来表征这种转换的幅度噪声到相位噪声的几个高速(>10 GHz)的InGaAs P-I-N光电二极管工作在900 nm。我们专注于低相位噪声10 GHz微波信号的光子产生的影响,并表明,低激光振幅噪声,适当的光电二极管设计,和最佳的平均光电流的组合,需要实现相位噪声为或低于-100 dBc/Hz在1 Hz偏移10 GHz的载波。在某些光电二极管中,我们发现特定的光电流,其中观察到功率到相位转换因子为零。

英文摘要:

Fluctuations of the optical power incident on a photodiode can be converted into phase fluctuations of the resulting electronic signal due to nonlinear saturation in the semiconductor. This impacts overall timing stability (phase noise) of microwave signals generated from a photodetected optical pulse train. In this paper, we describe and utilize techniques to characterize this conversion of amplitude noise to phase noise for several high-speed (>10 GHz) InGaAs P-I-N photodiodes operated at 900 nm. We focus on the impact of this effect on the photonic generation of low phase noise 10 GHz microwave signals and show that a combination of low laser amplitude noise, appropriate photodiode design, and optimum average photocurrent is required to achieve phase noise at or below -100 dBc/Hz at 1 Hz offset a 10 GHz carrier. In some photodiodes we find specific photocurrents where the power-to-phase conversion factor is observed to go to zero.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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