Heterogeneous 12-Core 4-LP-Mode Fiber Based on Trench-Assisted Graded-Index Profile
We design a heterogeneous 12-core 4-LP-mode fiber having two different types of cores and trench-assisted graded-index profiles. For the optimum design of the index profiles of these two heterogeneous cores, we first investigate the impacts of various geometric parameters on the effective refractive...
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IEEE
2017-01-01
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| Series: | IEEE Photonics Journal |
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| Online Access: | https://ieeexplore.ieee.org/document/7873308/ |
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| author | Jun Ho Chang Sunghyun Bae Hoon Kim Yun C. Chung |
| author_facet | Jun Ho Chang Sunghyun Bae Hoon Kim Yun C. Chung |
| author_sort | Jun Ho Chang |
| collection | DOAJ |
| description | We design a heterogeneous 12-core 4-LP-mode fiber having two different types of cores and trench-assisted graded-index profiles. For the optimum design of the index profiles of these two heterogeneous cores, we first investigate the impacts of various geometric parameters on the effective refractive index of each LP mode, maximum differential modal delay (DMD), and bending losses of the guiding and higher order modes. We then design a heterogeneous 12-core 4-LP mode fiber having a cladding diameter of 242 <inline-formula><tex-math notation="LaTeX"> $\mu {\rm m}$</tex-math></inline-formula>. The numerical analyses based on the coupled-mode equation show that the inter-core crosstalk levels of the proposed fiber are lower than <inline-formula><tex-math notation="LaTeX">$-$ </tex-math></inline-formula> 55 dB/km, regardless of modes, as long as the fiber is not bent tightly with a bending radius of <60 mm. In addition, the maximum DMD is estimated to be <70 ps/km over the entire C+L band. The number of modes per unit area and the relative core multiplicity factor of the proposed 12-core 4-LP-mode fiber are calculated to be 1.565 <inline-formula><tex-math notation="LaTeX">$\times$</tex-math></inline-formula> 10<sup> <inline-formula><tex-math notation="LaTeX">$-$</tex-math></inline-formula> 3</sup> <inline-formula> <tex-math notation="LaTeX">$\mu {\rm m}$</tex-math></inline-formula><sup><inline-formula><tex-math notation="LaTeX">$-$ </tex-math></inline-formula> 2</sup> and 42.2, respectively. |
| format | Article |
| id | doaj-art-35dbb3069d7c4d91be4993eec4758dcf |
| institution | Kabale University |
| issn | 1943-0655 |
| language | English |
| publishDate | 2017-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Photonics Journal |
| spelling | doaj-art-35dbb3069d7c4d91be4993eec4758dcf2025-08-20T03:32:37ZengIEEEIEEE Photonics Journal1943-06552017-01-019211010.1109/JPHOT.2017.26786837873308Heterogeneous 12-Core 4-LP-Mode Fiber Based on Trench-Assisted Graded-Index ProfileJun Ho Chang0Sunghyun Bae1Hoon Kim2Yun C. Chung3School of Electrical Engineering, KAIST, Daejeon, South KoreaSchool of Electrical Engineering, KAIST, Daejeon, South KoreaSchool of Electrical Engineering, KAIST, Daejeon, South KoreaSchool of Electrical Engineering, KAIST, Daejeon, South KoreaWe design a heterogeneous 12-core 4-LP-mode fiber having two different types of cores and trench-assisted graded-index profiles. For the optimum design of the index profiles of these two heterogeneous cores, we first investigate the impacts of various geometric parameters on the effective refractive index of each LP mode, maximum differential modal delay (DMD), and bending losses of the guiding and higher order modes. We then design a heterogeneous 12-core 4-LP mode fiber having a cladding diameter of 242 <inline-formula><tex-math notation="LaTeX"> $\mu {\rm m}$</tex-math></inline-formula>. The numerical analyses based on the coupled-mode equation show that the inter-core crosstalk levels of the proposed fiber are lower than <inline-formula><tex-math notation="LaTeX">$-$ </tex-math></inline-formula> 55 dB/km, regardless of modes, as long as the fiber is not bent tightly with a bending radius of <60 mm. In addition, the maximum DMD is estimated to be <70 ps/km over the entire C+L band. The number of modes per unit area and the relative core multiplicity factor of the proposed 12-core 4-LP-mode fiber are calculated to be 1.565 <inline-formula><tex-math notation="LaTeX">$\times$</tex-math></inline-formula> 10<sup> <inline-formula><tex-math notation="LaTeX">$-$</tex-math></inline-formula> 3</sup> <inline-formula> <tex-math notation="LaTeX">$\mu {\rm m}$</tex-math></inline-formula><sup><inline-formula><tex-math notation="LaTeX">$-$ </tex-math></inline-formula> 2</sup> and 42.2, respectively.https://ieeexplore.ieee.org/document/7873308/Space-division multiplexingmulti-core fiberfew-mode fiberfiber characterization. |
| spellingShingle | Jun Ho Chang Sunghyun Bae Hoon Kim Yun C. Chung Heterogeneous 12-Core 4-LP-Mode Fiber Based on Trench-Assisted Graded-Index Profile IEEE Photonics Journal Space-division multiplexing multi-core fiber few-mode fiber fiber characterization. |
| title | Heterogeneous 12-Core 4-LP-Mode Fiber Based on Trench-Assisted Graded-Index Profile |
| title_full | Heterogeneous 12-Core 4-LP-Mode Fiber Based on Trench-Assisted Graded-Index Profile |
| title_fullStr | Heterogeneous 12-Core 4-LP-Mode Fiber Based on Trench-Assisted Graded-Index Profile |
| title_full_unstemmed | Heterogeneous 12-Core 4-LP-Mode Fiber Based on Trench-Assisted Graded-Index Profile |
| title_short | Heterogeneous 12-Core 4-LP-Mode Fiber Based on Trench-Assisted Graded-Index Profile |
| title_sort | heterogeneous 12 core 4 lp mode fiber based on trench assisted graded index profile |
| topic | Space-division multiplexing multi-core fiber few-mode fiber fiber characterization. |
| url | https://ieeexplore.ieee.org/document/7873308/ |
| work_keys_str_mv | AT junhochang heterogeneous12core4lpmodefiberbasedontrenchassistedgradedindexprofile AT sunghyunbae heterogeneous12core4lpmodefiberbasedontrenchassistedgradedindexprofile AT hoonkim heterogeneous12core4lpmodefiberbasedontrenchassistedgradedindexprofile AT yuncchung heterogeneous12core4lpmodefiberbasedontrenchassistedgradedindexprofile |