In this paper, jitter modulation of SPADs in different photon wavelengths is explored. It is shown that in p+/n-well, or p+/deep n-well SPADs the jitter increases with increasing the photon wavelength, due to an increase in avalanche buildup time (τ). The avalanche buildup time is enhanced in higher wavelength due to the deeper photon absorption depth, and lower avalanche probability in deeper depths in p+/n-well or p+/deep n-well structures, which itself enhances the SPAD jitter. The finding of this paper could successfully describe the two previously implemented SPAD jitter measurement results.

中文翻译：

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单光子雪崩二极管 (SPAD) 中光子波长变化的抖动调制

在本文中，探讨了不同光子波长下 SPAD 的抖动调制。结果表明，在 p+/n 阱或 p+/深 n 阱 SPAD 中，由于雪崩累积时间 (τ) 的增加，抖动随着光子波长的增加而增加。由于更深的光子吸收深度，雪崩累积时间在更高波长处增加，而在 p+/n 阱或 p+/深 n 阱结构中更深的雪崩概率较低，这本身会增强 SPAD 抖动。本文的发现可以成功地描述之前实现的两个 SPAD 抖动测量结果。