Reflective semiconductor optical amplifiers-based all-optical NOR and XNOR logic gates at 120 Gb/s

Amer Kotb*, Chunlei Guo*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)

Abstract

In this paper, we reported a reflective semiconductor optical amplifier (RSOA), in which the input light propagates and reflects back to the input port after amplifying twice through its active region. The RSOA produces higher gain and lower noise figure at low drive currents with energy-efficient than the conventional SOAs. The RSOA’s features are employed herein to numerically analyze the ultrafast performance of the all-optical NOT-OR (NOR) and Exclusive-NOR (XNOR) logic gates using a dual-RSOAs-based scheme at 120 Gb/s. A comparison between RSOAs- and conventional SOAs-based AO NOR and XNOR gates is made by studying the quality factor (QF) against the critical operational parameters when the effects of the amplified spontaneous emission and the operating temperature are included to obtain more realistic results. Compared to conventional SOAs, the RSOAs allow to achieve more acceptable performance at 120 Gb/s and to render the implementation of the NOR and XNOR gates more feasible.

Original languageEnglish
Pages (from-to)1424-1435
Number of pages12
JournalJournal of Modern Optics
Volume67
Issue number18
DOIs
Publication statusPublished - 2020
Externally publishedYes

Keywords

  • All-optical NOR logic gate
  • all-optical XNOR logic gate
  • quality factor
  • reflective semiconductor optical amplifier

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