Proposal for simultaneous all-optical AND,NOR,and XNOR logic gates using QPM cascading nonlinear eff

• 作 者: 唐喻斌 陈玉萍 蒋淏苇 吉唯峰 吴依菁 陈险峰
• 机 构: State Key Laboratory on Fiber Optic Local Area Communication Networks and Advanced Optical Communica
• 出 处: Chinese Optics Letters
• 发表日期: 2013年06期
• 关键词: gates simultaneous cascaded matching lithium periodically extinction realization

We propose AND,NOR,and XNOR logic gates realized simultaneously for 40-Gb/s networks,in which the realization of NOR and XNOR logic gates using only MgO-doped periodically poled lithium niobate(MgO:PPLN) is reported.In our configuration,we exploit broadband quasi-phase matching(QPM) cascaded second harmonic and difference-frequency generation(cSHG/DFG),cascaded sum-frequency and differencefrequency generation(cSFG/DFG) in one MgO:PPLN,and the narrow band QPM sum-frequency generation(SFG) in another MgO:PPLN.The performance,including the quality-factor(Q-factor) and extinction ratio(ER),of the proposed multifunctional logic device is also simulated.

We propose AND, NOR, and XNOR logic gates realized simultaneously for 40-Gb / s networks, where the realization of NOR and XNOR logic gates using only MgO-doped periodically poled lithium niobate (MgO: PPLN) is reported.In our configuration , we exploit broadband quasi-phase matching (QPM) cascaded second harmonic and difference-frequency generation (cSHG / DFG), cascaded sum- frequency and difference frequency generation (cSFG / DFG) in one MgO: PPLN, and the narrow band QPM sum- frequency generation (SFG) in another MgO: PPLN.The performance, including the quality-factor (Q-factor) and extinction ratio (ER), of the proposed multifunctional logic device is also simulated.