A Reconfigurable Single-Photon-Counting Integrating Receiver for Optical Communications
A Reconfigurable Single-Photon-Counting Integrating Receiver for Optical Communications
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DOI：
10.1109/jssc.2013.2253222
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发表时间：
2013-07-01
影响因子：
5.4
通讯作者：
Henderson, Robert
中科院分区：
文献类型：
--
作者：
Fisher, Edward;Underwood, Ian;Henderson, Robert
提出了一种可重构的单光子雪崩二极管集成接收器，用于阵列读出带宽为100mhz的光链路。最大计数率为58 G光子/s，动态范围约为79 dB， 100 MHz时灵敏度约为31.7 dBm，误码率约为1 × 10（-9）。传感器核心在最大计数率下吸收89mW，峰值信噪比接近157 dB。我们研究了可见光光谱中光通信接收器的特性，利用其附加的功能和可重构性来实验探索非理想影响。全数字32 × 32 SPAD阵列的最小死区时间为5.9 ns，中位暗计数率为2.5 kHz/SPAD。spad的内部增益和时空求和消除了模拟放大的需要。可以对高噪声器件进行加权或去除以优化信噪比。探讨了功率要求、瞬态响应和接收数据，并观察了与光电二极管接收器相似的限制因素。
A reconfigurable Single-Photon Avalanche Diode integrating receiver in standard 130 nm CMOS is presented for optical links with an array readout bandwidth of 100 MHz. A maximum count rate of 58 G photon/s is observed, with a dynamic range of approximate to 79 dB, a sensitivity of approximate to-31.7 dBm at 100 MHz and a BER of approximate to 1x10(-9). The sensor core draws 89mW at the maximum count rate and obtains a peak SNR of approximate to 157 dB. We investigate the properties of the receiver for optical communications in the visible spectrum, using its added functionality and reconfigurability to experimentally explore non-ideal influences. The all-digital 32 x 32 SPAD array, achieves a minimum dead time of 5.9 ns, and a median dark count rate of 2.5 kHz/SPAD. The internal gain of SPADs and spatio-temporal summation removes the need for analogue amplification. High noise devices can be weighted or removed to optimize the SNR. The power requirements, transient response and received data are explored and limiting factors similar to those of photodiode receivers are observed.