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传统的基于半导体放大器的全光异或逻辑门,由于受SOA中长载流子寿命引起码型效应的影响,其工作速率的提升受到了限制。提出了一种基于MZI和体材料SOA中交叉增益调制的全光逻辑异或门的工作速率提升的实现方案。通过增加MZI两臂上SOA的长度和提高入射直流探测光功率,增强了直流探测光和数据光在较长的SOA中的相互作用,以减小超高速工作状态下SOA中的载流子寿命,提升体材料SOA的工作速率,实现超高速XOR逻辑功能。研究表明,入射直流探测光功率的提升、SOA长度的增加、数据光峰值功率的提高及数据光脉宽的减少,可使XOR逻辑门的输出信号质量得到明显的提升,使全光异或逻辑门的工作速率可望达到1 Tb/s。
The traditional all-optical XOR gates based on semiconductor amplifiers have been limited in their working speed due to the effect of pattern caused by long carrier lifetime in SOA. A scheme to improve the working speed of all-optical logic XOR gate based on cross-gain modulation in MZI and bulk material is proposed. By increasing the length of the SOA on both arms of the MZI and increasing the incident DC detection optical power, the interaction between the DC probe light and the data light in a longer SOA is enhanced to reduce the carrier lifetime in SOA during ultra-fast operation , To enhance the body material SOA work rate, to achieve ultra-high-speed XOR logic. The results show that the output signal quality of the XOR logic gate can be obviously improved by the improvement of the incident DC detection power, the increase of the SOA length, the increase of the peak power of the data light and the decrease of the pulse width of the data, so that the all-optical XOR logic The working rate of the door is expected to reach 1 Tb / s.