Nakarmi B, Zhang X, Won Y H
Opt Express. 2015 Oct 19;23(21):26952-61. doi: 10.1364/OE.23.026952.
We demonstrate all-optical 4x10 Gbps NAND gate with an individual input data rate of 10 Gbps using single mode Fabry-Pérot laser diode. The proposed scheme is based on the principle of multi-input injection locking. All-optical NAND gate is one of the universal logic gates which can be used for realizing all other logic gates for optical communication and networks. The output performance of the proposed all-optical multi-input NAND gate is verified with output spectrum domain results, waveforms, rising-falling time, and eye diagram measurement at 10 Gbps input. The ON/OFF contrast ratio of 41 dB is measured at the spectrum domain output when all four input beams are logic high. In all other combinations of four inputs, maximum ON/OFF contrast ratio of 1.5 dB ON/OFF is measured. Clear output waveform, output eye diagram with an extinction ratio of about 11 dB, and rising-falling time of about 35 ps are obtained. The BER measurement is carried out and we found the power penalty of about 1.7 dB at BER of 10(-9).
我们使用单模法布里 - 珀罗激光二极管演示了一种全光4x10 Gbps与非门，其单个输入数据速率为10 Gbps。所提出的方案基于多输入注入锁定原理。全光与非门是通用逻辑门之一，可用于实现光通信和网络中的所有其他逻辑门。通过输出频谱域结果、波形、上升 - 下降时间以及10 Gbps输入时的眼图测量，验证了所提出的全光多输入与非门的输出性能。当所有四个输入光束均为逻辑高电平时，在频谱域输出处测得的开/关对比度为41 dB。在四个输入的所有其他组合中，测得的最大开/关对比度为1.5 dB开/关。获得了清晰的输出波形、消光比约为11 dB的输出眼图以及约35 ps的上升 - 下降时间。进行了误码率测量，我们发现在误码率为10(-9)时功率代价约为1.7 dB。
