Design and Characteristics of Diamond-Assisted Ring-Core Fiber for Space Division Multiplexing

Song, Yujing; Zheng, Jingjing; Pei, Li; Huang, Jing; Ning, Tigang; Li, Jing; Wang, Jianshuai; Bai, Bing

doi:10.3390/photonics9100766

Cited by 2 publications

(1 citation statement)

References 30 publications

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“…Bi-directional transmission is employed in another manner of WDM in which the multiplexing devices function in two directions. Space division multiplexing is an essential element of the next high-capacity fiber optic networks (Song et al, 2022). The work in this field is strongly driven due to the exceptional significance it has in optical communication.…”

Section: Introductionmentioning

confidence: 99%

Design of low crosstalk homogeneous multicore few mode fiber for future high-capacity optical transmission

Shams,

Jakaria,

Mahmud Sher

et al. 2024

CSER

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Many researches are diligently striving to develop a multi-core optical fiber with minimal signal distortion and reduced issues. The current study proposed few designs for homogeneous multicore few mode fiber which is characterized by the combination of high index ring and trench. This study also added four air holes surrounding each core. We considered pure silica for both the outer clad and the inner clad of the fiber. To calculate the crosstalk, a two-core model was used and the mode coupling coefficient was determined using coupled-mode and couple-power theory. For the current work we considered only the fundamental mode (LP01) to compute the crosstalk between neighboring cores. The proposed structure was simulated using the wave optics module of COMSOL Multiphysics (Version 6.1), a well-known commercial software tool based on finite element method (FEM). MATLAB (Version R2018a) was used to calculate the mode coupling coefficient and crosstalk after extracting the mode field data from COMSOL. Obtained results revealed that the proposed structure can offer lower crosstalk which was attractive for future high-capacity fiber optic communication using multicore fiber technology.

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Section: Introductionmentioning

confidence: 99%

Design of low crosstalk homogeneous multicore few mode fiber for future high-capacity optical transmission

Shams,

Jakaria,

Mahmud Sher

et al. 2024

CSER

View full text Add to dashboard Cite

show abstract

Research on center-assisted ring-core few-mode fiber with an eccentric circle for mode degeneracy separation in space division multiplexing

Ye,

Ning,

Pei

et al. 2024

J. Opt. Soc. Am. B

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An eccentric-circle-assisted ring-core fiber (ECRF) structure is proposed to effectively separate spatial-degenerated linear polarization (LP) modes while maintaining birefringence at the 10−6 level, which provides more degrees of freedom in the design of few-mode fiber employment in space division multiplexing (SDM) systems. Our simulation analysis demonstrates that the effective refractive index difference (Δneff) between the spatially degenerate modes in this fiber falls within the range of (2.44−6.42)×10−4 at 1530–1565 nm, given the refractive index difference level typical of conventional fiber core and cladding. In addition, the polarization separation level for each mode is on the order of 10−6 and below. The design requirements of significant separation of spatial degeneracy and basically no separation of polarization degeneracy are achieved. Based on the characteristics of spatially degenerate mode in this fiber, we extend the regulation law for spatially degenerate mode separation of the LP m n mode groups in center-assisted ring-core fibers. In comparison to the existing center-assisted ring-core fiber structure, the ECRF can further reduce the fabrication difficulty and increase the feasibility of preparation.

show abstract

Design and Characteristics of Diamond-Assisted Ring-Core Fiber for Space Division Multiplexing

Cited by 2 publications

References 30 publications

Design of low crosstalk homogeneous multicore few mode fiber for future high-capacity optical transmission

Design of low crosstalk homogeneous multicore few mode fiber for future high-capacity optical transmission

Research on center-assisted ring-core few-mode fiber with an eccentric circle for mode degeneracy separation in space division multiplexing

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