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Analysis of institutional authors

Nazemosadat, ElhamAuthorMadrigal, JavierAuthorBarrera, DavidAuthorSales, SalvadorAuthor

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October 8, 2024
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Theoretical and experimental analysis of inter-core crosstalk in strongly-coupled multicore fiber tapers

Publicated to: OPTICS AND LASER TECHNOLOGY. 181 111777- - 2025-02-01 181(), DOI: 10.1016/j.optlastec.2024.111777

Authors:

Hernández-Ambato, V; Nazemosadat, E; Madrigal, J; Barrera, D; Sales, S
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Affiliations

Univ Politecn Valencia, CalSens SL, 9B Bldg Off, Camino Vera S-N, Valencia 46022, Spain - Author
Univ Politecn Valencia, Photon Res Labs, iTeam, Camino Vera S-N, Valencia 46022, Spain - Author

Abstract

We present a comprehensive theoretical model based on the coupled-mode theory, capable of analyzing the crosstalk in a multicore optical fiber taper. The novelty of our developed model lies in its ability to describe the mode coupling in strongly-coupled multicore fiber tapers, a feature not covered by previously reported models that are only suitable for weakly-coupled multicore fibers. In our approach, we consider all possible coupling interactions among both adjacent and nonadjacent cores, along with the self-coupling within each core of a homogeneous seven-core optical fiber. Moreover, we also take into account that when a homogeneous multicore fiber undergoes tapering, a propagation constant mismatch appears between the central and external cores, due to the closer proximity of the external cores to the surrounding environment. To validate our model, we implemented fiber tapers of different waist lengths and diameters in a seven-core optical fiber and compared their inter-core crosstalk with the simulated results. Unlike previous studies that only injected light into the central core, we also explored the case where the input is launched into any external core of the fiber tapers. For both scenarios, we verified that our theoretical model can describe the dynamics of mode coupling occurring in a tapered multicore fiber for a large range of waist diameters. We believe that the findings from this study could be useful for designing sensing and signal-processing devices.
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Keywords

Coupling modeInterferometeMode theoryMulticore fiberOptical-fibersStrongly-coupleTaperingTilted fiber

Quality index

Bibliometric impact. Analysis of the contribution and dissemination channel

The work has been published in the journal OPTICS AND LASER TECHNOLOGY due to its progression and the good impact it has achieved in recent years, according to the agency WoS (JCR), it has become a reference in its field. In the year of publication of the work, 2025, it was in position 25/125, thus managing to position itself as a Q1 (Primer Cuartil), in the category Optics.

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Impact and social visibility

From the perspective of influence or social adoption, and based on metrics associated with mentions and interactions provided by agencies specializing in calculating the so-called "Alternative or Social Metrics," we can highlight as of 2026-04-02:

  • The use of this contribution in bookmarks, code forks, additions to favorite lists for recurrent reading, as well as general views, indicates that someone is using the publication as a basis for their current work. This may be a notable indicator of future more formal and academic citations. This claim is supported by the result of the "Capture" indicator, which yields a total of: 4 (PlumX).

It is essential to present evidence supporting full alignment with institutional principles and guidelines on Open Science and the Conservation and Dissemination of Intellectual Heritage. A clear example of this is:

  • The work has been submitted to a journal whose editorial policy allows open Open Access publication.
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Leadership analysis of institutional authors

There is a significant leadership presence as some of the institution’s authors appear as the first or last signer, detailed as follows: First Author (Hernandez-Ambato, Valeria) and Last Author (Sales Maicas, Salvador).

the author responsible for correspondence tasks has been Hernandez-Ambato, Valeria.

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Awards linked to the item

This research was partially supported by MCIN/AEI/10.13039/501100011033 (under I+D+i projects INSTILL PID2020-120071RJ-I00, SYNERGY PID2020-118310RB-I00, INNOFIBER PID2023-152314OBI00 and NEXTPAM TED2021-131148B-I00). Valeria HernandezAmbato was supported by Generalitat Valenciana (under grant GRISOLIAP/2020/083).
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