Lu Zhiwen, Sun Wenlu, Zhou Qiugui, Campbell Joe, Jiang Xudong, Itzler Mark A
Electrical and Computer Engineering, University of Virginia, Charlottesville, VA 22904, USA.
Opt Express. 2013 Jul 15;21(14):16716-21. doi: 10.1364/OE.21.016716.
We report balanced InGaAs/InP single photon avalanche diodes (SPADs) operated in sinusoidal gating mode with a tunable phase shifter to reduce common mode noise. This technique enables detection of small avalanche pulses, which results in reduced afterpulsing. For laser repletion rate of 20 MHz at 240 K, the dark count rate for photon detection efficiency of 10% is 8.9 kHz.
我们报告了采用可调相移器以正弦门控模式工作的平衡式铟镓砷/磷化铟单光子雪崩二极管（SPAD），以降低共模噪声。该技术能够检测到小的雪崩脉冲，从而减少了后脉冲。在240 K温度下，对于20 MHz的激光重复率，光子探测效率为10%时的暗计数率为8.9 kHz。
