A SPAD-Based Photon Detecting System for Optical Communications
A SPAD-Based Photon Detecting System for Optical Communications
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DOI：
10.1109/jlt.2014.2316972
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发表时间：
2014-05-15
影响因子：
4.7
通讯作者：
Collins, Steve
中科院分区：
文献类型：
--
作者：
Chitnis, Danial;Collins, Steve
在0.18 μ m CMOS工艺下，设计并制造了一种小型单光子雪崩探测器阵列（spad），以测试一种新的光通信光子探测系统。首先给出了数值结果，表明使用spad阵列可以降低接收机所需的光功率密度。实验结果表明，新系统保留了spad的光子计数能力。最后提出了一种简单的方法，可以用来估计在特定光功率密度下达到特定目标误码率所需的阵列尺寸。总之，这些结果表明，用新系统取代接收器中的雪崩光电二极管，将有可能计算接收到的光子。
A small array of single photon avalanche detectors (SPADs) has been designed and fabricated in a standard 0.18 mu m CMOS process to test a new photon detecting system for optical communications. First numerical results are presented which show that using arrays of SPADs reduces the optical power density required at the receiver. Experimental results then show that the new system preserves the photon counting ability of the SPADs. Finally a simple method is presented which can be used to estimate the size of array needed to achieve a particular target bit error rate at a specific optical power density. Together these results indicate that by replacing the avalanche photodiode in a receiver with the new system it will be possible to count the received photons.