Design and analysis of optical encryption for optical transport networks with a rate of 100Gbps based on Mach–Zehnder interferometers

Abstract This paper proposes a novel MZI (Mach–Zehnder Interferometer) structure for high-speed optical encryption in Optical Transmission Networks (OTNs) operating at 100 Gbps with OTU4 signaling on a silicon-based optical fiber substrate. The design achieves a significantly lower $${V}_{\pi }l$$ (...

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Main Authors: Amir Khalili, Kambiz Abedi
Format: Article
Language:English
Published: Nature Portfolio 2025-04-01
Series:Scientific Reports
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Online Access:https://doi.org/10.1038/s41598-025-95314-1
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author Amir Khalili
Kambiz Abedi
author_facet Amir Khalili
Kambiz Abedi
author_sort Amir Khalili
collection DOAJ
description Abstract This paper proposes a novel MZI (Mach–Zehnder Interferometer) structure for high-speed optical encryption in Optical Transmission Networks (OTNs) operating at 100 Gbps with OTU4 signaling on a silicon-based optical fiber substrate. The design achieves a significantly lower $${V}_{\pi }l$$ (half-wave voltage length) compared to existing MZIs by engineering the material profile of the MZI arm cladding. Additionally, it introduces a novel approach by utilizing the dispersive arm for precise control of reflecting power. This optimized MZI exhibits a $${V}_{\pi }l$$ of approximately 13.5 V mm and a bandwidth of 116.5 GHz, resulting in a figure of merit (FOM) of 8.630 GHz/V mm. This represents an 86% improvement over comparable MZI designs, highlighting the significant performance enhancement. Furthermore, the proposed MZI boasts the smallest footprint among similar implementations. Notably, the entire structure, including the synchronizer and switch, leverages the MZI principle. This MZI-based design holds promise for efficient and compact optical encryption in 100 Gbps OTNs.
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spelling doaj-art-a0eb4fb2d23c470fa085f0ab3b20fff72025-08-20T03:10:07ZengNature PortfolioScientific Reports2045-23222025-04-0115111310.1038/s41598-025-95314-1Design and analysis of optical encryption for optical transport networks with a rate of 100Gbps based on Mach–Zehnder interferometersAmir Khalili0Kambiz Abedi1Faculty of Electrical Engineering, Shahid Beheshti UniversityFaculty of Electrical Engineering, Shahid Beheshti UniversityAbstract This paper proposes a novel MZI (Mach–Zehnder Interferometer) structure for high-speed optical encryption in Optical Transmission Networks (OTNs) operating at 100 Gbps with OTU4 signaling on a silicon-based optical fiber substrate. The design achieves a significantly lower $${V}_{\pi }l$$ (half-wave voltage length) compared to existing MZIs by engineering the material profile of the MZI arm cladding. Additionally, it introduces a novel approach by utilizing the dispersive arm for precise control of reflecting power. This optimized MZI exhibits a $${V}_{\pi }l$$ of approximately 13.5 V mm and a bandwidth of 116.5 GHz, resulting in a figure of merit (FOM) of 8.630 GHz/V mm. This represents an 86% improvement over comparable MZI designs, highlighting the significant performance enhancement. Furthermore, the proposed MZI boasts the smallest footprint among similar implementations. Notably, the entire structure, including the synchronizer and switch, leverages the MZI principle. This MZI-based design holds promise for efficient and compact optical encryption in 100 Gbps OTNs.https://doi.org/10.1038/s41598-025-95314-1Fiber opticOptical transport network (OTN)Optical cryptographyMach–Zehnder interferometer (MZI)Mach–Zehnder modulator (MZM)Thin film lithium niobate (TFLN)
spellingShingle Amir Khalili
Kambiz Abedi
Design and analysis of optical encryption for optical transport networks with a rate of 100Gbps based on Mach–Zehnder interferometers
Scientific Reports
Fiber optic
Optical transport network (OTN)
Optical cryptography
Mach–Zehnder interferometer (MZI)
Mach–Zehnder modulator (MZM)
Thin film lithium niobate (TFLN)
title Design and analysis of optical encryption for optical transport networks with a rate of 100Gbps based on Mach–Zehnder interferometers
title_full Design and analysis of optical encryption for optical transport networks with a rate of 100Gbps based on Mach–Zehnder interferometers
title_fullStr Design and analysis of optical encryption for optical transport networks with a rate of 100Gbps based on Mach–Zehnder interferometers
title_full_unstemmed Design and analysis of optical encryption for optical transport networks with a rate of 100Gbps based on Mach–Zehnder interferometers
title_short Design and analysis of optical encryption for optical transport networks with a rate of 100Gbps based on Mach–Zehnder interferometers
title_sort design and analysis of optical encryption for optical transport networks with a rate of 100gbps based on mach zehnder interferometers
topic Fiber optic
Optical transport network (OTN)
Optical cryptography
Mach–Zehnder interferometer (MZI)
Mach–Zehnder modulator (MZM)
Thin film lithium niobate (TFLN)
url https://doi.org/10.1038/s41598-025-95314-1
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