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<p>A new design of multimode W-type (doubly clad) microstructured plastic optical fiber (mPOF) with graded-index (GI) distribution of the core is proposed, along with a methodology for examining transmission along it. The power flow equation’s (PFE) numerical solution yields the transmission properties of the W-type GI mPOF. We have demonstrated that the coupling length <i>L</i><sub><i>c</i></sub> at which an equilibrium mode distribution (EMD) is reached in W-type GI mPOF is shorter than the length experimentally found for the conventional singly- clad (SC) GI POF. This results from leaky mode losses, which lower the length <i>L</i><sub><i>c</i></sub> in W-type GI mPOF by lowering the amount of higher guided modes engaged in the coupling process. As a result, the bandwidth of W-type GI mPOF significantly increases. It is noteworthy that, when compared to the experimental bandwidth of commercially available conventional POFs, the bandwidth of the W-type GI mPOF proposed in this work is noticeably higher. Consequently, the bandwidth performance of short-haul communication lines may be significantly improved by using such a designed W-type GI mPOF.</p>

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High bandwidth performance of newly designed multimode W-type microstructured plastic optical fibers with graded-index core distribution

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年5月16日

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  • Ana Simović,
  • Branko Drljača,
  • Milan S. Kovačević,
  • Ljubica Kuzmanović,
  • Alexandar Djordjevich,
  • Konstantinos Aidinis,
  • Changyuan Yu,
  • Xiong Deng,
  • Svetislav Savović

摘要

A new design of multimode W-type (doubly clad) microstructured plastic optical fiber (mPOF) with graded-index (GI) distribution of the core is proposed, along with a methodology for examining transmission along it. The power flow equation’s (PFE) numerical solution yields the transmission properties of the W-type GI mPOF. We have demonstrated that the coupling length Lc at which an equilibrium mode distribution (EMD) is reached in W-type GI mPOF is shorter than the length experimentally found for the conventional singly- clad (SC) GI POF. This results from leaky mode losses, which lower the length Lc in W-type GI mPOF by lowering the amount of higher guided modes engaged in the coupling process. As a result, the bandwidth of W-type GI mPOF significantly increases. It is noteworthy that, when compared to the experimental bandwidth of commercially available conventional POFs, the bandwidth of the W-type GI mPOF proposed in this work is noticeably higher. Consequently, the bandwidth performance of short-haul communication lines may be significantly improved by using such a designed W-type GI mPOF.