250 Gb/s All-Optical XNOR Logic Using a Single QD-SOA-MZI: Demonstration and Comprehensive Performance Analysis.

Amer Kotb, Bisheng Zhu, Jiali Cui, Kyriakos E Zoiros

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Article in Micromachines, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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4 authors.

Amer KotbSchool of Chips, XJTLU Entrepreneur College (Taicang), Xi'an Jiaotong-Liverpool University, Taicang 215400, China.ORCID 0000-0002-3776-822X

Bisheng ZhuSchool of Chips, XJTLU Entrepreneur College (Taicang), Xi'an Jiaotong-Liverpool University, Taicang 215400, China.

Jiali CuiSchool of Chips, XJTLU Entrepreneur College (Taicang), Xi'an Jiaotong-Liverpool University, Taicang 215400, China.

Kyriakos E ZoirosLightwave Communications Research Group, Department of Electrical and Computer Engineering, School of Engineering, Democritus University of Thrace, 67100 Xanthi, Greece.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Increasing data rates in optical networks require ultra-fast all-optical logic gates to avoid electro-optic conversion bottlenecks. This work presents a numerical simulation and performance analysis of an all-optical XNOR logic gate operating at 250 Gb/s, implemented using a single quantum-dot semiconductor optical amplifier (QD-SOA) embedded in a Mach-Zehnder interferometer (MZI). Using the QD-SOA's ultrafast carrier dynamics and high nonlinearity, the gate achieves a quality factor (QF) of 26.30 at 250 Gb/s, corresponding to a theoretical bit-error rate below 10

Indexed as

cross-phase modulation (XPM)exclusive-NOR (XNOR)Mach–Zehnder interferometer (MZI)quality factor (QF)quantum-dot semiconductor optical amplifier (QD-SOA)

Identifiers

PMID42076218

DOI10.3390/mi17040441

PMCPMC13117681

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