High-Speed All-Optical Encoder and Comparator at 120 Gb/s Using a Carrier Reservoir Semiconductor Optical Amplifier.

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Title: High-Speed All-Optical Encoder and Comparator at 120 Gb/s Using a Carrier Reservoir Semiconductor Optical Amplifier.
Authors: Kotb, Amer1,2 (AUTHOR) amer.kotb@xjtlu.edu.cn, Zoiros, Kyriakos E.2,3 (AUTHOR) kzoiros@ee.duth.gr
Source: Nanomaterials (2079-4991). May2025, Vol. 15 Issue 9, p647. 18p.
Subjects: Optical computing, Optical amplifiers, Signal integrity (Electronics), Optical shaft encoders, Information storage & retrieval systems, Semiconductor optical amplifiers
Abstract: All-optical encoders and comparators are essential components for high-speed optical computing, enabling ultra-fast data processing with minimal latency and low power consumption. This paper presents a numerical analysis of an all-optical encoder and comparator architecture operating at 120 Gb/s, based on carrier reservoir semiconductor optical amplifier-assisted Mach–Zehnder interferometers (CR-SOA-MZIs). Building upon our previous work on all-optical arithmetic circuits, this study extends the application of CR-SOA-MZI structures to implement five key logic operations between two input signals (A and B): A ¯ B , A B ¯ , AB (AND), A ¯   B ¯ (NOR), and AB + A ¯   B ¯ (XNOR). The performance of these logic gates is evaluated using the quality factor (QF), yielding values of 17.56, 17.04, 19.05, 10.95, and 8.33, respectively. We investigate the impact of critical design parameters on the accuracy and stability of the logic outputs, confirming the feasibility of high-speed operation with robust signal integrity. These results support the viability of CR-SOA-MZI-based configurations for future all-optical logic circuits, offering promising potential for advanced optical computing and next-generation photonic information processing systems. [ABSTRACT FROM AUTHOR]
Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: High-Speed All-Optical Encoder and Comparator at 120 Gb/s Using a Carrier Reservoir Semiconductor Optical Amplifier.
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  Data: <searchLink fieldCode="DE" term="%22Optical+computing%22">Optical computing</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+amplifiers%22">Optical amplifiers</searchLink><br /><searchLink fieldCode="DE" term="%22Signal+integrity+%28Electronics%29%22">Signal integrity (Electronics)</searchLink><br /><searchLink fieldCode="DE" term="%22Optical+shaft+encoders%22">Optical shaft encoders</searchLink><br /><searchLink fieldCode="DE" term="%22Information+storage+%26+retrieval+systems%22">Information storage & retrieval systems</searchLink><br /><searchLink fieldCode="DE" term="%22Semiconductor+optical+amplifiers%22">Semiconductor optical amplifiers</searchLink>
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  Data: All-optical encoders and comparators are essential components for high-speed optical computing, enabling ultra-fast data processing with minimal latency and low power consumption. This paper presents a numerical analysis of an all-optical encoder and comparator architecture operating at 120 Gb/s, based on carrier reservoir semiconductor optical amplifier-assisted Mach–Zehnder interferometers (CR-SOA-MZIs). Building upon our previous work on all-optical arithmetic circuits, this study extends the application of CR-SOA-MZI structures to implement five key logic operations between two input signals (A and B): A ¯ B , A B ¯ , AB (AND), A ¯   B ¯ (NOR), and AB + A ¯   B ¯ (XNOR). The performance of these logic gates is evaluated using the quality factor (QF), yielding values of 17.56, 17.04, 19.05, 10.95, and 8.33, respectively. We investigate the impact of critical design parameters on the accuracy and stability of the logic outputs, confirming the feasibility of high-speed operation with robust signal integrity. These results support the viability of CR-SOA-MZI-based configurations for future all-optical logic circuits, offering promising potential for advanced optical computing and next-generation photonic information processing systems. [ABSTRACT FROM AUTHOR]
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  Label:
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  Data: <i>Copyright of Nanomaterials (2079-4991) is the property of MDPI and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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        Value: 10.3390/nano15090647
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      – Code: eng
        Text: English
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        PageCount: 18
        StartPage: 647
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      – SubjectFull: Optical computing
        Type: general
      – SubjectFull: Optical amplifiers
        Type: general
      – SubjectFull: Signal integrity (Electronics)
        Type: general
      – SubjectFull: Optical shaft encoders
        Type: general
      – SubjectFull: Information storage & retrieval systems
        Type: general
      – SubjectFull: Semiconductor optical amplifiers
        Type: general
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      – TitleFull: High-Speed All-Optical Encoder and Comparator at 120 Gb/s Using a Carrier Reservoir Semiconductor Optical Amplifier.
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            NameFull: Kotb, Amer
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            NameFull: Zoiros, Kyriakos E.
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            – D: 01
              M: 05
              Text: May2025
              Type: published
              Y: 2025
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